{"id":20181,"date":"2021-12-17T13:27:39","date_gmt":"2021-12-17T06:27:39","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=20181"},"modified":"2021-12-17T13:27:42","modified_gmt":"2021-12-17T06:27:42","slug":"gia-tri-luong-giac-cua-mot-cung","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/gia-tri-luong-giac-cua-mot-cung\/","title":{"rendered":"GI\u00c1 TR\u1eca L\u01af\u1ee2NG GI\u00c1C C\u1ee6A M\u1ed8T CUNG"},"content":{"rendered":"<p><strong>A. T\u00d3M T\u1eaeT <a href=\"https:\/\/www.vietlearn.org\" data-internallinksmanager029f6b8e52c=\"2\" title=\"Vietlearn\" rel=\"nofollow\">KI\u1ebeN TH\u1ee8C C\u01a0 B\u1ea2N<\/a><\/strong><\/p>\n<p><strong>I \u2013 GI\u00c1 TR\u1eca L\u01af\u1ee2NG GI\u00c1C C\u1ee6A CUNG <\/strong> <img decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20182\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_256-12.png\" alt=\"IMG_256\" \/><\/p>\n<p><strong>1. \u0110\u1ecbnh ngh\u0129a<\/strong><\/p>\n<p>Tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n l\u01b0\u1ee3ng gi\u00e1c cho cung <img decoding=\"async\" width=\"39\" height=\"36\" class=\"wp-image-20183\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_257-11.png\" alt=\"IMG_257\" \/> c\u00f3 <em>s\u0111<\/em> <img decoding=\"async\" width=\"74\" height=\"36\" class=\"wp-image-20184\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_258-12.png\" alt=\"IMG_258\" \/> (c\u00f2n vi\u1ebft ..)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"14\" height=\"17\" class=\"wp-image-20185\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_260-12.png\" alt=\"IMG_260\" \/> Tung \u0111\u1ed9 <img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"22\" class=\"wp-image-20186\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_261-9.png\" alt=\"IMG_261\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"14\" class=\"wp-image-20187\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_262-10.png\" alt=\"IMG_262\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"36\" height=\"29\" class=\"wp-image-20188\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_263-11.png\" alt=\"IMG_263\" \/> c\u1ee7a \u0111i\u1ec3m <img loading=\"lazy\" decoding=\"async\" width=\"27\" height=\"20\" class=\"wp-image-20189\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_264-10.png\" alt=\"IMG_264\" \/> g\u1ecdi l\u00e0 sin c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20190\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_265-10.png\" alt=\"IMG_265\" \/> v\u00e0 k\u00ed hi\u1ec7u l\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"23\" class=\"wp-image-20191\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_266-10.png\" alt=\"IMG_266\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"107\" height=\"36\" class=\"wp-image-20192\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_267-11.png\" alt=\"IMG_267\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"14\" height=\"17\" class=\"wp-image-20193\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_268-11.png\" alt=\"IMG_268\" \/> Ho\u00e0nh \u0111\u1ed9 <img loading=\"lazy\" decoding=\"async\" width=\"67\" height=\"29\" class=\"wp-image-20194\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_269-11.png\" alt=\"IMG_269\" \/> c\u1ee7a \u0111i\u1ec3m <img loading=\"lazy\" decoding=\"async\" width=\"27\" height=\"20\" class=\"wp-image-20195\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_270-9.png\" alt=\"IMG_270\" \/> g\u1ecdi l\u00e0 c\u00f4sin c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20196\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_271-11.png\" alt=\"IMG_271\" \/> v\u00e0 k\u00ed hi\u1ec7u l\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"52\" height=\"19\" class=\"wp-image-20197\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_272-11.png\" alt=\"IMG_272\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_272-11.png 52w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_272-11-50x19.png 50w\" sizes=\"(max-width: 52px) 100vw, 52px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"112\" height=\"36\" class=\"wp-image-20198\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_273-10.png\" alt=\"IMG_273\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"14\" height=\"17\" class=\"wp-image-20199\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_274-11.png\" alt=\"IMG_274\" \/> N\u1ebfu <img loading=\"lazy\" decoding=\"async\" width=\"82\" height=\"26\" class=\"wp-image-20200\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_275-10.png\" alt=\"IMG_275\" \/> t\u1ec9 s\u1ed1 <img loading=\"lazy\" decoding=\"async\" width=\"52\" height=\"52\" class=\"wp-image-20201\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_276-11.png\" alt=\"IMG_276\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_276-11.png 52w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_276-11-50x50.png 50w\" sizes=\"(max-width: 52px) 100vw, 52px\" \/> g\u1ecdi l\u00e0 tang c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20202\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_277-11.png\" alt=\"IMG_277\" \/> v\u00e0 k\u00ed hi\u1ec7u l\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"47\" height=\"22\" class=\"wp-image-20203\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_278-11.png\" alt=\"IMG_278\" \/> (ng\u01b0\u1eddi ta c\u00f2n d\u00f9ng k\u00ed hi\u1ec7u <img loading=\"lazy\" decoding=\"async\" width=\"39\" height=\"26\" class=\"wp-image-20204\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_279-9.png\" alt=\"IMG_279\" \/> )<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"119\" height=\"52\" class=\"wp-image-20205\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_280-11.png\" alt=\"IMG_280\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"14\" height=\"17\" class=\"wp-image-20206\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_281-10.png\" alt=\"IMG_281\" \/> N\u1ebfu <img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"26\" class=\"wp-image-20207\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_282-11.png\" alt=\"IMG_282\" \/> t\u1ec9 s\u1ed1 <img loading=\"lazy\" decoding=\"async\" width=\"52\" height=\"52\" class=\"wp-image-20208\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_283-10.png\" alt=\"IMG_283\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_283-10.png 52w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_283-10-50x50.png 50w\" sizes=\"(max-width: 52px) 100vw, 52px\" \/> g\u1ecdi l\u00e0 c\u00f4tang c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20209\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_284-10.png\" alt=\"IMG_284\" \/> v\u00e0 k\u00ed hi\u1ec7u l\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"47\" height=\"20\" class=\"wp-image-20210\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_285-11.png\" alt=\"IMG_285\" \/> (ng\u01b0\u1eddi ta c\u00f2n d\u00f9ng k\u00ed hi\u1ec7u <img loading=\"lazy\" decoding=\"async\" width=\"57\" height=\"26\" class=\"wp-image-20211\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_286-10.png\" alt=\"IMG_286\" \/> ): <img loading=\"lazy\" decoding=\"async\" width=\"117\" height=\"52\" class=\"wp-image-20212\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_287-11.png\" alt=\"IMG_287\" \/><\/p>\n<p>C\u00e1c gi\u00e1 tr\u1ecb <img loading=\"lazy\" decoding=\"async\" width=\"214\" height=\"26\" class=\"wp-image-20213\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_288-11.png\" alt=\"IMG_288\" \/> \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 c\u00e1c <strong>gi\u00e1 tr\u1ecb l\u01b0\u1ee3ng gi\u00e1c c\u1ee7a cung <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"19\" class=\"wp-image-20214\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_289-12.png\" alt=\"IMG_289\" \/><\/p>\n<p>Ta c\u0169ng g\u1ecdi tr\u1ee5c tung l\u00e0 <strong>tr\u1ee5c sin<\/strong>, c\u00f2n tr\u1ee5c ho\u00e0nh l\u00e0 <strong>tr\u1ee5c c\u00f4sin<\/strong><\/p>\n<p><strong>2. H\u1ec7 qu\u1ea3<\/strong><\/p>\n<p>1) <img loading=\"lazy\" decoding=\"async\" width=\"45\" height=\"23\" class=\"wp-image-20215\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_290-11.png\" alt=\"IMG_290\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"19\" class=\"wp-image-20216\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_291-11.png\" alt=\"IMG_291\" \/> x\u00e1c \u0111\u1ecbnh v\u1edbi m\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"57\" height=\"23\" class=\"wp-image-20217\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_292-11.png\" alt=\"IMG_292\" \/> H\u01a1n n\u1eefa, ta c\u00f3<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"259\" height=\"74\" class=\"wp-image-20218\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_293-11.png\" alt=\"IMG_293\" \/><\/p>\n<p>2) V\u00ec <img loading=\"lazy\" decoding=\"async\" width=\"107\" height=\"30\" class=\"wp-image-20219\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_294-11.png\" alt=\"IMG_294\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"102\" height=\"29\" class=\"wp-image-20220\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_295-11.png\" alt=\"IMG_295\" \/> n\u00ean ta c\u00f3<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"128\" height=\"67\" class=\"wp-image-20221\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_296-11.png\" alt=\"IMG_296\" \/><\/p>\n<p>3) V\u1edbi m\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"54\" height=\"23\" class=\"wp-image-20222\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_297-11.png\" alt=\"IMG_297\" \/> m\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"85\" height=\"23\" class=\"wp-image-20223\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_298-11.png\" alt=\"IMG_298\" \/> \u0111\u1ec1u t\u1ed3n t\u1ea1i <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20224\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_299-11.png\" alt=\"IMG_299\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"22\" height=\"27\" class=\"wp-image-20225\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_300-11.png\" alt=\"IMG_300\" \/> sao cho <img loading=\"lazy\" decoding=\"async\" width=\"79\" height=\"23\" class=\"wp-image-20226\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_301-11.png\" alt=\"IMG_301\" \/> v\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"89\" height=\"27\" class=\"wp-image-20227\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_302-11.png\" alt=\"IMG_302\" \/><\/p>\n<p>4) <img loading=\"lazy\" decoding=\"async\" width=\"47\" height=\"22\" class=\"wp-image-20228\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_303-11.png\" alt=\"IMG_303\" \/> x\u00e1c \u0111\u1ecbnh v\u1edbi m\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"168\" height=\"52\" class=\"wp-image-20229\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_304-11.png\" alt=\"IMG_304\" \/><\/p>\n<p>5) <img loading=\"lazy\" decoding=\"async\" width=\"47\" height=\"22\" class=\"wp-image-20230\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_305-11.png\" alt=\"IMG_305\" \/> x\u00e1c \u0111\u1ecbnh v\u1edbi m\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"134\" height=\"33\" class=\"wp-image-20231\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_306-11.png\" alt=\"IMG_306\" \/><\/p>\n<p>6) D\u1ea5u c\u1ee7a c\u00e1c gi\u00e1 tr\u1ecb l\u01b0\u1ee3ng gi\u00e1c c\u1ee7a g\u00f3c <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20232\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_307-11.png\" alt=\"IMG_307\" \/> ph\u1ee5 thu\u1ed9c v\u00e0o v\u1ecb tr\u00ed \u0111i\u1ec3m cu\u1ed1i c\u1ee7a cung <img loading=\"lazy\" decoding=\"async\" width=\"74\" height=\"36\" class=\"wp-image-20233\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_308-11.png\" alt=\"IMG_308\" \/> tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n l\u01b0\u1ee3ng gi\u00e1c.<\/p>\n<p><strong><em>B\u1ea3ng x\u00e1c \u0111\u1ecbnh d\u1ea5u c\u1ee7a c\u00e1c gi\u00e1 tr\u1ecb l\u01b0\u1ee3ng gi\u00e1c<\/em><\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td>G\u00f3c ph\u1ea7n t\u01b0<\/p>\n<p>Gi\u00e1 tr\u1ecb l\u01b0\u1ee3ng gi\u00e1c<\/td>\n<td>I<\/td>\n<td>II<\/td>\n<td>III<\/td>\n<td>IV<\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"48\" height=\"19\" class=\"wp-image-20234\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_309-11.png\" alt=\"IMG_309\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20235\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_310-11.png\" alt=\"IMG_310\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"14\" class=\"wp-image-20236\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_311-11.png\" alt=\"IMG_311\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"14\" class=\"wp-image-20237\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_312-11.png\" alt=\"IMG_312\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20238\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_313-11.png\" alt=\"IMG_313\" \/><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"45\" height=\"23\" class=\"wp-image-20239\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_314-11.png\" alt=\"IMG_314\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20240\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_315-11.png\" alt=\"IMG_315\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20241\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_316-11.png\" alt=\"IMG_316\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"14\" class=\"wp-image-20242\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_317-11.png\" alt=\"IMG_317\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"14\" class=\"wp-image-20243\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_318-11.png\" alt=\"IMG_318\" \/><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"47\" height=\"22\" class=\"wp-image-20244\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_319-11.png\" alt=\"IMG_319\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20245\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_320-11.png\" alt=\"IMG_320\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"14\" class=\"wp-image-20246\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_321-10.png\" alt=\"IMG_321\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20247\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_322-10.png\" alt=\"IMG_322\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"14\" class=\"wp-image-20248\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_323-10.png\" alt=\"IMG_323\" \/><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"47\" height=\"22\" class=\"wp-image-20249\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_324-10.png\" alt=\"IMG_324\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20250\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_325-10.png\" alt=\"IMG_325\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"14\" class=\"wp-image-20251\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_326-10.png\" alt=\"IMG_326\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20252\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_327-10.png\" alt=\"IMG_327\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"14\" class=\"wp-image-20253\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_328-9.png\" alt=\"IMG_328\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong> M\u1eb9o ghi nh\u1edb: <\/strong><em>\u201cNh\u1ea5t c\u1ea3, nh\u1ecb sin, tam tan, t\u1ee9 cos\u201d<\/em><\/p>\n<p><strong>3. Gi\u00e1 tr\u1ecb l\u01b0\u1ee3ng gi\u00e1c c\u1ee7a c\u00e1c cung \u0111\u1eb7c bi\u1ec7t<\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>G\u00f3c <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20254\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_329-9.png\" alt=\"IMG_329\" \/><\/strong><\/td>\n<td>0<\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"22\" height=\"52\" class=\"wp-image-20255\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_330-9.png\" alt=\"IMG_330\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"22\" height=\"52\" class=\"wp-image-20256\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_331-9.png\" alt=\"IMG_331\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"22\" height=\"52\" class=\"wp-image-20257\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_332-9.png\" alt=\"IMG_332\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"22\" height=\"52\" class=\"wp-image-20258\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_333-9.png\" alt=\"IMG_333\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"52\" class=\"wp-image-20259\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_334-9.png\" alt=\"IMG_334\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"52\" class=\"wp-image-20260\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_335-9.png\" alt=\"IMG_335\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20261\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_336-9.png\" alt=\"IMG_336\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"52\" class=\"wp-image-20262\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_337-9.png\" alt=\"IMG_337\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"29\" height=\"23\" class=\"wp-image-20263\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_338-9.png\" alt=\"IMG_338\" \/><\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td>0<sup>0<\/sup><\/td>\n<td>30<sup>0<\/sup><\/td>\n<td>45<sup>0<\/sup><\/td>\n<td>60<sup>0<\/sup><\/td>\n<td>90<sup>0<\/sup><\/td>\n<td>120<sup>0<\/sup><\/td>\n<td>135<sup>0<\/sup><\/td>\n<td>180<sup>0<\/sup><\/td>\n<td>270<sup>0<\/sup><\/td>\n<td>360<sup>0<\/sup><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"45\" height=\"23\" class=\"wp-image-20264\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_339-9.png\" alt=\"IMG_339\" \/><\/td>\n<td>0<\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"52\" class=\"wp-image-20265\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_340-9.png\" alt=\"IMG_340\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"36\" height=\"57\" class=\"wp-image-20266\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_341-9.png\" alt=\"IMG_341\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"33\" height=\"57\" class=\"wp-image-20267\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_342-9.png\" alt=\"IMG_342\" \/><\/td>\n<td>1<\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"33\" height=\"57\" class=\"wp-image-20268\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_343-9.png\" alt=\"IMG_343\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"36\" height=\"57\" class=\"wp-image-20269\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_344-9.png\" alt=\"IMG_344\" \/><\/td>\n<td>0<\/td>\n<td>\u20131<\/td>\n<td>0<\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"47\" height=\"19\" class=\"wp-image-20270\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_345-9.png\" alt=\"IMG_345\" \/><\/td>\n<td>1<\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"33\" height=\"57\" class=\"wp-image-20271\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_346-9.png\" alt=\"IMG_346\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"36\" height=\"57\" class=\"wp-image-20272\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_347-9.png\" alt=\"IMG_347\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"52\" class=\"wp-image-20273\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_348-9.png\" alt=\"IMG_348\" \/><\/td>\n<td>0<\/td>\n<td>..<\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"58\" class=\"wp-image-20274\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_349-9.png\" alt=\"IMG_349\" \/><\/td>\n<td>\u20131<\/td>\n<td>0<\/td>\n<td>1<\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"52\" height=\"20\" class=\"wp-image-20275\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_350-9.png\" alt=\"IMG_350\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_350-9.png 52w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_350-9-50x20.png 50w\" sizes=\"(max-width: 52px) 100vw, 52px\" \/><\/td>\n<td>0<\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"33\" height=\"58\" class=\"wp-image-20276\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_351-9.png\" alt=\"IMG_351\" \/><\/td>\n<td>1<\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"29\" class=\"wp-image-20277\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_352-9.png\" alt=\"IMG_352\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"14\" height=\"27\" class=\"wp-image-20278\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_353-9.png\" alt=\"IMG_353\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"45\" height=\"29\" class=\"wp-image-20279\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_354-9.png\" alt=\"IMG_354\" \/><\/td>\n<td>\u20131<\/td>\n<td>0<\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"14\" height=\"27\" class=\"wp-image-20280\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_355-9.png\" alt=\"IMG_355\" \/><\/td>\n<td>0<\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"20\" class=\"wp-image-20281\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_356-9.png\" alt=\"IMG_356\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"14\" height=\"27\" class=\"wp-image-20282\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_357-9.png\" alt=\"IMG_357\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"29\" class=\"wp-image-20283\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_358-9.png\" alt=\"IMG_358\" \/><\/td>\n<td>1<\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"33\" height=\"58\" class=\"wp-image-20284\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_359-9.png\" alt=\"IMG_359\" \/><\/td>\n<td>0<\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"58\" class=\"wp-image-20285\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_360-9.png\" alt=\"IMG_360\" \/><\/td>\n<td>\u20131<\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"14\" height=\"27\" class=\"wp-image-20286\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_361-9.png\" alt=\"IMG_361\" \/><\/td>\n<td>0<\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"14\" height=\"27\" class=\"wp-image-20287\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_362-9.png\" alt=\"IMG_362\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"387\" height=\"303\" class=\"wp-image-20288\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_363-1.jpeg\" alt=\"IMG_363\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_363-1.jpeg 387w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_363-1-300x235.jpeg 300w\" sizes=\"(max-width: 387px) 100vw, 387px\" \/><\/p>\n<p><strong>II \u2013 \u00dd NGH\u0128A H\u00ccNH H\u1eccC C\u1ee6A TANG V\u00c0 C\u00d4TANG<\/strong><\/p>\n<p><strong>1. \u00dd ngh\u0129a h\u00ecnh h\u1ecdc c\u1ee7a <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"20\" class=\"wp-image-20289\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_364-9.png\" alt=\"IMG_364\" \/><\/p>\n<p>T\u1eeb <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"20\" class=\"wp-image-20290\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_365-9.png\" alt=\"IMG_365\" \/> v\u1ebd ti\u1ebfp tuy\u1ebfn <img loading=\"lazy\" decoding=\"async\" width=\"36\" height=\"27\" class=\"wp-image-20291\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_366-9.png\" alt=\"IMG_366\" \/> v\u1edbi \u0111\u01b0\u1eddng tr\u00f2n l\u01b0\u1ee3ng gi\u00e1c. Ta coi ti\u1ebfp tuy\u1ebfn n\u00e0y l\u00e0 m\u1ed9t tr\u1ee5c s\u1ed1 b\u1eb1ng c\u00e1ch ch\u1ecdn g\u1ed1c t\u1ea1i <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"20\" class=\"wp-image-20292\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_367-9.png\" alt=\"IMG_367\" \/> .<\/p>\n<p>G\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"20\" class=\"wp-image-20293\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_368-9.png\" alt=\"IMG_368\" \/> l\u00e0 giao \u0111i\u1ec3m c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"41\" height=\"23\" class=\"wp-image-20294\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_369-9.png\" alt=\"IMG_369\" \/> v\u1edbi tr\u1ee5c <img loading=\"lazy\" decoding=\"async\" width=\"42\" height=\"23\" class=\"wp-image-20295\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_370-9.png\" alt=\"IMG_370\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"20\" class=\"wp-image-20296\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_371-9.png\" alt=\"IMG_371\" \/> \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1edfi \u0111\u1ed9 d\u00e0i \u0111\u1ea1i s\u1ed1 c\u1ee7a vect\u01a1 <img loading=\"lazy\" decoding=\"async\" width=\"33\" height=\"27\" class=\"wp-image-20297\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_372-9.png\" alt=\"IMG_372\" \/> tr\u00ean tr\u1ee5c <img loading=\"lazy\" decoding=\"async\" width=\"41\" height=\"27\" class=\"wp-image-20298\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_373-9.png\" alt=\"IMG_373\" \/> Vi\u1ebft: <img loading=\"lazy\" decoding=\"async\" width=\"104\" height=\"36\" class=\"wp-image-20299\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_374-9.png\" alt=\"IMG_374\" \/><\/p>\n<p>Tr\u1ee5c <img loading=\"lazy\" decoding=\"async\" width=\"36\" height=\"27\" class=\"wp-image-20300\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_375-9.png\" alt=\"IMG_375\" \/> \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <strong>tr\u1ee5c tang.<\/strong><\/p>\n<p><strong>2. \u00dd ngh\u0129a h\u00ecnh h\u1ecdc c\u1ee7a <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"47\" height=\"20\" class=\"wp-image-20301\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_377-7.png\" alt=\"IMG_377\" \/><\/p>\n<p>T\u1eeb <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"20\" class=\"wp-image-20302\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_378-6.png\" alt=\"IMG_378\" \/> v\u1ebd ti\u1ebfp tuy\u1ebfn <img loading=\"lazy\" decoding=\"async\" width=\"41\" height=\"27\" class=\"wp-image-20303\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_379-6.png\" alt=\"IMG_379\" \/> v\u1edbi \u0111\u01b0\u1eddng tr\u00f2n l\u01b0\u1ee3ng gi\u00e1c. Ta coi ti\u1ebfp tuy\u1ebfn n\u00e0y l\u00e0 m\u1ed9t tr\u1ee5c s\u1ed1 b\u1eb1ng c\u00e1ch ch\u1ecdn g\u1ed1c t\u1ea1i <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"20\" class=\"wp-image-20304\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_380-6.png\" alt=\"IMG_380\" \/> .<\/p>\n<p>G\u1ecdi <img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"23\" class=\"wp-image-20305\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_381-6.png\" alt=\"IMG_381\" \/> l\u00e0 giao \u0111i\u1ec3m c\u1ee7a <img loading=\"lazy\" decoding=\"async\" width=\"41\" height=\"23\" class=\"wp-image-20306\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_382-6.png\" alt=\"IMG_382\" \/> v\u1edbi tr\u1ee5c <img loading=\"lazy\" decoding=\"async\" width=\"41\" height=\"27\" class=\"wp-image-20307\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_383-6.png\" alt=\"IMG_383\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"47\" height=\"20\" class=\"wp-image-20308\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_384-6.png\" alt=\"IMG_384\" \/> \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec3n b\u1edfi \u0111\u1ed9 d\u00e0i \u0111\u1ea1i s\u1ed1 c\u1ee7a vect\u01a1 <img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"29\" class=\"wp-image-20309\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_385-6.png\" alt=\"IMG_385\" \/> tr\u00ean tr\u1ee5c <img loading=\"lazy\" decoding=\"async\" width=\"41\" height=\"27\" class=\"wp-image-20310\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_386-6.png\" alt=\"IMG_386\" \/> . Vi\u1ebft: <img loading=\"lazy\" decoding=\"async\" width=\"101\" height=\"36\" class=\"wp-image-20311\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_387-5.png\" alt=\"IMG_387\" \/><\/p>\n<p>Tr\u1ee5c <img loading=\"lazy\" decoding=\"async\" width=\"41\" height=\"27\" class=\"wp-image-20312\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_388-3.png\" alt=\"IMG_388\" \/> \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 <strong>tr\u1ee5c c\u00f4tang.<\/strong><\/p>\n<p><strong> Nh\u1eadn x\u00e9t: <\/strong> <img loading=\"lazy\" decoding=\"async\" width=\"249\" height=\"74\" class=\"wp-image-20313\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_390-3.png\" alt=\"IMG_390\" \/><\/p>\n<p><strong>III \u2013 QUAN H\u1ec6 GI\u1eeeA C\u00c1C GI\u00c1 TR\u1eca L\u01af\u1ee2NG GI\u00c1C<\/strong><\/p>\n<p><strong>1. C\u00f4ng th\u1ee9c l\u01b0\u1ee3ng gi\u00e1c c\u01a1 b\u1ea3n<\/strong><\/p>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c gi\u00e1 tr\u1ecb l\u01b0\u1ee3ng gi\u00e1c, ta c\u00f3 c\u00e1c h\u1eb1ng \u0111\u1eb3ng th\u1ee9c sau<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"27\" class=\"wp-image-20314\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_391-3.png\" alt=\"IMG_391\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"112\" height=\"52\" class=\"wp-image-20315\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_392-4.png\" alt=\"IMG_392\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"152\" height=\"52\" class=\"wp-image-20316\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_393-4.png\" alt=\"IMG_393\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_393-4.png 152w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_393-4-150x52.png 150w\" sizes=\"(max-width: 152px) 100vw, 152px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"112\" height=\"52\" class=\"wp-image-20317\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_394-4.png\" alt=\"IMG_394\" \/> , <img loading=\"lazy\" decoding=\"async\" width=\"119\" height=\"27\" class=\"wp-image-20318\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_395-4.png\" alt=\"IMG_395\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"125\" height=\"27\" class=\"wp-image-20319\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_396-4.png\" alt=\"IMG_396\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"125\" height=\"52\" class=\"wp-image-20320\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_397-4.png\" alt=\"IMG_397\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"162\" height=\"52\" class=\"wp-image-20321\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_398-4.png\" alt=\"IMG_398\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"152\" height=\"52\" class=\"wp-image-20322\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_399-4.png\" alt=\"IMG_399\" srcset=\"https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_399-4.png 152w, https:\/\/www.vietlearn.org\/kien-thuc\/wp-content\/uploads\/2021\/12\/img_399-4-150x52.png 150w\" sizes=\"(max-width: 152px) 100vw, 152px\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"158\" height=\"52\" class=\"wp-image-20323\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_400-4.png\" alt=\"IMG_400\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"119\" height=\"27\" class=\"wp-image-20324\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_401-4.png\" alt=\"IMG_401\" \/><\/p>\n<p><strong>2. Gi\u00e1 tr\u1ecb l\u01b0\u1ee3ng gi\u00e1c c\u1ee7a c\u00e1c cung c\u00f3 li\u00ean quan \u0111\u1eb7c bi\u1ec7t<\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td><strong>G\u00f3c \u0111\u1ed1i nhau (<img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20325\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_402-4.png\" alt=\"IMG_402\" \/><\/strong> \u00a0v\u00e0 <strong><img loading=\"lazy\" decoding=\"async\" width=\"32\" height=\"19\" class=\"wp-image-20326\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_403-4.png\" alt=\"IMG_403\" \/><\/strong> )<\/td>\n<td><strong>G\u00f3c b\u00f9 nhau(<img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20327\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_404-4.png\" alt=\"IMG_404\" \/><\/strong> \u00a0v\u00e0 <strong><img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"19\" class=\"wp-image-20328\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_405-4.png\" alt=\"IMG_405\" \/><\/strong> )<\/td>\n<td><strong>G\u00f3c ph\u1ee5 nhau(<img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20329\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_406-4.png\" alt=\"IMG_406\" \/><\/strong> \u00a0v\u00e0 <strong><img loading=\"lazy\" decoding=\"async\" width=\"55\" height=\"52\" class=\"wp-image-20330\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_407-4.png\" alt=\"IMG_407\" \/><\/strong> )<\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"139\" height=\"27\" class=\"wp-image-20331\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_408-4.png\" alt=\"IMG_408\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"27\" class=\"wp-image-20332\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_409-4.png\" alt=\"IMG_409\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"168\" height=\"58\" class=\"wp-image-20333\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_410-4.png\" alt=\"IMG_410\" \/><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"147\" height=\"27\" class=\"wp-image-20334\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_411-4.png\" alt=\"IMG_411\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"172\" height=\"27\" class=\"wp-image-20335\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_412-4.png\" alt=\"IMG_412\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"168\" height=\"58\" class=\"wp-image-20336\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_413-4.png\" alt=\"IMG_413\" \/><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"27\" class=\"wp-image-20337\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_414-4.png\" alt=\"IMG_414\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"168\" height=\"27\" class=\"wp-image-20338\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_415-4.png\" alt=\"IMG_415\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"171\" height=\"58\" class=\"wp-image-20339\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_416-4.png\" alt=\"IMG_416\" \/><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"149\" height=\"27\" class=\"wp-image-20340\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_417-4.png\" alt=\"IMG_417\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"167\" height=\"27\" class=\"wp-image-20341\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_418-4.png\" alt=\"IMG_418\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"171\" height=\"58\" class=\"wp-image-20342\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_419-4.png\" alt=\"IMG_419\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table>\n<tbody>\n<tr>\n<td><strong>G\u00f3c h\u01a1n k\u00e9m <img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20343\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_420-4.png\" alt=\"IMG_420\" \/><\/strong> (<strong><img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20344\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_421-4.png\" alt=\"IMG_421\" \/><\/strong> \u00a0v\u00e0 <strong><img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"20\" class=\"wp-image-20345\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_422-4.png\" alt=\"IMG_422\" \/><\/strong> )<\/td>\n<td><strong>G\u00f3c h\u01a1n k\u00e9m <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"52\" class=\"wp-image-20346\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_423-4.png\" alt=\"IMG_423\" \/><\/strong> (<strong><img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20347\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_424-4.png\" alt=\"IMG_424\" \/><\/strong> \u00a0v\u00e0 <strong><img loading=\"lazy\" decoding=\"async\" width=\"55\" height=\"52\" class=\"wp-image-20348\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_425-4.png\" alt=\"IMG_425\" \/><\/strong> )<\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"165\" height=\"27\" class=\"wp-image-20349\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_426-4.png\" alt=\"IMG_426\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"165\" height=\"58\" class=\"wp-image-20350\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_427-4.png\" alt=\"IMG_427\" \/><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"168\" height=\"27\" class=\"wp-image-20351\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_428-4.png\" alt=\"IMG_428\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"181\" height=\"58\" class=\"wp-image-20352\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_429-4.png\" alt=\"IMG_429\" \/><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"27\" class=\"wp-image-20353\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_430-3.png\" alt=\"IMG_430\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"181\" height=\"58\" class=\"wp-image-20354\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_431-3.png\" alt=\"IMG_431\" \/><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"27\" class=\"wp-image-20355\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_432-3.png\" alt=\"IMG_432\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"181\" height=\"58\" class=\"wp-image-20356\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_433-3.png\" alt=\"IMG_433\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Ch\u00fa \u00fd: <\/strong>\u0110\u1ec3 nh\u1edb nhanh c\u00e1c c\u00f4ng th\u1ee9c tr\u00ean ta nh\u1edb c\u00e2u: &#8221; cos &#8211; \u0111\u1ed1i, sin \u2013 b\u00f9, ph\u1ee5 &#8211; ch\u00e9o, h\u01a1n k\u00e9m <img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20357\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_434-3.png\" alt=\"IMG_434\" \/> tang c\u00f4tang, h\u01a1n k\u00e9m <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"52\" class=\"wp-image-20358\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_435-3.png\" alt=\"IMG_435\" \/> ch\u00e9o sin&#8221;. V\u1edbi nguy\u00ean t\u1eafc nh\u1eafc \u0111\u1ebfn gi\u00e1 tr\u1ecb n\u00e0o th\u00ec n\u00f3 b\u1eb1ng c\u00f2n kh\u00f4ng nh\u1eafc th\u00ec \u0111\u1ed1i.<\/p>\n<p><strong>B. C\u00c1C D\u1ea0NG TO\u00c1N:<\/strong><\/p>\n<p><strong>D\u1ea0NG 1: X\u00c1C \u0110\u1ecaNH D\u1ea4U C\u1ee6A C\u00c1C GI\u00c1 TR\u1eca L\u01af\u1ee2NG GI\u00c1C<\/strong><\/p>\n<p><strong>I. PH\u01af\u01a0NG PH\u00c1P: <\/strong>D\u1ea5u c\u1ee7a c\u00e1c gi\u00e1 tr\u1ecb l\u01b0\u1ee3ng gi\u00e1c c\u1ee7a g\u00f3c <img loading=\"lazy\" decoding=\"async\" width=\"20\" height=\"19\" class=\"wp-image-20359\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_436-3.png\" alt=\"IMG_436\" \/> ph\u1ee5 thu\u1ed9c v\u00e0o v\u1ecb tr\u00ed \u0111i\u1ec3m cu\u1ed1i (\u0111i\u1ec3m ng\u1ecdn) c\u1ee7a cung <img loading=\"lazy\" decoding=\"async\" width=\"74\" height=\"36\" class=\"wp-image-20360\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_437-3.png\" alt=\"IMG_437\" \/> tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n l\u01b0\u1ee3ng gi\u00e1c. V\u00ec th\u1ebf c\u1ea7n x\u00e1c \u0111\u1ecbnh v\u1ecb tr\u00ed \u0111i\u1ec3m M tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n l\u01b0\u1ee3ng gi\u00e1c r\u1ed3i s\u1eed d\u1ee5ng b\u1ea3ng x\u00e9t d\u1ea5u c\u00e1c gi\u00e1 tr\u1ecb l\u01b0\u1ee3ng gi\u00e1c.<\/p>\n<p><strong><em>B\u1ea3ng x\u00e1c \u0111\u1ecbnh d\u1ea5u c\u1ee7a c\u00e1c gi\u00e1 tr\u1ecb l\u01b0\u1ee3ng gi\u00e1c<\/em><\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td>V\u1ecb tr\u00ed \u0111i\u1ec3m M thu\u1ed9c<\/p>\n<p>g\u00f3c ph\u1ea7n t\u01b0<\/p>\n<p>Gi\u00e1 tr\u1ecb l\u01b0\u1ee3ng gi\u00e1c<\/td>\n<td>I<\/td>\n<td>II<\/td>\n<td>III<\/td>\n<td>IV<\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"19\" class=\"wp-image-20361\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_438-3.png\" alt=\"IMG_438\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20362\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_439-3.png\" alt=\"IMG_439\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-20363\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_440-3.png\" alt=\"IMG_440\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-20364\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_441-3.png\" alt=\"IMG_441\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20365\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_442-3.png\" alt=\"IMG_442\" \/><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"47\" height=\"23\" class=\"wp-image-20366\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_443-3.png\" alt=\"IMG_443\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20367\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_444-3.png\" alt=\"IMG_444\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20368\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_445-3.png\" alt=\"IMG_445\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-20369\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_446-3.png\" alt=\"IMG_446\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-20370\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_447-3.png\" alt=\"IMG_447\" \/><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"51\" height=\"20\" class=\"wp-image-20371\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_448-3.png\" alt=\"IMG_448\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20372\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_449-2.png\" alt=\"IMG_449\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-20373\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_450-2.png\" alt=\"IMG_450\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20374\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_451-2.png\" alt=\"IMG_451\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-20375\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_452-2.png\" alt=\"IMG_452\" \/><\/td>\n<\/tr>\n<tr>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"47\" height=\"20\" class=\"wp-image-20376\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_453-2.png\" alt=\"IMG_453\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20377\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_454-2.png\" alt=\"IMG_454\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-20378\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_455-2.png\" alt=\"IMG_455\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"19\" height=\"19\" class=\"wp-image-20379\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_456-2.png\" alt=\"IMG_456\" \/><\/td>\n<td><img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"14\" class=\"wp-image-20380\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_457-2.png\" alt=\"IMG_457\" \/><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>II. V\u00cd D\u1ee4 MINH H\u1eccA:<\/strong><\/p>\n<p>Cho <img loading=\"lazy\" decoding=\"async\" width=\"88\" height=\"52\" class=\"wp-image-20381\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_458-2.png\" alt=\"IMG_458\" \/> . X\u00e1c \u0111\u1ecbnh d\u1ea5u c\u1ee7a c\u00e1c bi\u1ec3u th\u1ee9c sau:<\/p>\n<p>a) <img loading=\"lazy\" decoding=\"async\" width=\"101\" height=\"58\" class=\"wp-image-20382\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_459-2.png\" alt=\"IMG_459\" \/> b) <img loading=\"lazy\" decoding=\"async\" width=\"111\" height=\"58\" class=\"wp-image-20383\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_460-2.png\" alt=\"IMG_460\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"17\" height=\"26\" class=\"wp-image-20384\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_461-2.png\" alt=\"IMG_461\" \/><\/p>\n<p>c) <img loading=\"lazy\" decoding=\"async\" width=\"211\" height=\"58\" class=\"wp-image-20385\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_462-2.png\" alt=\"IMG_462\" \/> d) <img loading=\"lazy\" decoding=\"async\" width=\"162\" height=\"52\" class=\"wp-image-20386\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_463-2.png\" alt=\"IMG_463\" \/><\/p>\n<p><strong><em>L\u1eddi gi\u1ea3i<\/em><\/strong><\/p>\n<p>a) Ta c\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"91\" height=\"52\" class=\"wp-image-20387\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_464-2.png\" alt=\"IMG_464\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"20\" class=\"wp-image-20388\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_465-2.png\" alt=\"IMG_465\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"130\" height=\"52\" class=\"wp-image-20389\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_466-2.png\" alt=\"IMG_466\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"20\" class=\"wp-image-20390\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_467-2.png\" alt=\"IMG_467\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"128\" height=\"57\" class=\"wp-image-20391\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_468-2.png\" alt=\"IMG_468\" \/><\/p>\n<p>b) Ta c\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"125\" height=\"52\" class=\"wp-image-20392\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_469-2.png\" alt=\"IMG_469\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"20\" class=\"wp-image-20393\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_470-2.png\" alt=\"IMG_470\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"140\" height=\"52\" class=\"wp-image-20394\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_471-2.png\" alt=\"IMG_471\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"20\" class=\"wp-image-20395\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_472-2.png\" alt=\"IMG_472\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"140\" height=\"58\" class=\"wp-image-20396\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_473-2.png\" alt=\"IMG_473\" \/><\/p>\n<p>c) Ta c\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"91\" height=\"52\" class=\"wp-image-20397\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_474-2.png\" alt=\"IMG_474\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"20\" class=\"wp-image-20398\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_475-2.png\" alt=\"IMG_475\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"131\" height=\"52\" class=\"wp-image-20399\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_476-2.png\" alt=\"IMG_476\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"20\" class=\"wp-image-20400\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_477-2.png\" alt=\"IMG_477\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"146\" height=\"58\" class=\"wp-image-20401\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_478-2.png\" alt=\"IMG_478\" \/><\/p>\n<p>V\u00e0 <img loading=\"lazy\" decoding=\"async\" width=\"116\" height=\"52\" class=\"wp-image-20402\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_479-2.png\" alt=\"IMG_479\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"20\" class=\"wp-image-20403\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_480-2.png\" alt=\"IMG_480\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"125\" height=\"33\" class=\"wp-image-20404\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_481-2.png\" alt=\"IMG_481\" \/><\/p>\n<p>V\u1eady <img loading=\"lazy\" decoding=\"async\" width=\"240\" height=\"58\" class=\"wp-image-20405\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_482-2.png\" alt=\"IMG_482\" \/> .<\/p>\n<p>d) Ta c\u00f3 <img loading=\"lazy\" decoding=\"async\" width=\"128\" height=\"52\" class=\"wp-image-20406\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_483-2.png\" alt=\"IMG_483\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"20\" class=\"wp-image-20407\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_484-2.png\" alt=\"IMG_484\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"98\" height=\"52\" class=\"wp-image-20408\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_485-2.png\" alt=\"IMG_485\" \/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"91\" height=\"52\" class=\"wp-image-20409\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_486-2.png\" alt=\"IMG_486\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"23\" height=\"20\" class=\"wp-image-20410\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_487-2.png\" alt=\"IMG_487\" \/> <img loading=\"lazy\" decoding=\"async\" width=\"140\" height=\"52\" class=\"wp-image-20411\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_488-2.png\" alt=\"IMG_488\" \/> suy ra <img loading=\"lazy\" decoding=\"async\" width=\"122\" height=\"33\" class=\"wp-image-20412\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_489-2.png\" alt=\"IMG_489\" \/> .<\/p>\n<p>V\u1eady <img loading=\"lazy\" decoding=\"async\" width=\"192\" height=\"52\" class=\"wp-image-20413\" src=\"https:\/\/www.vietlearn.org\/post\/wp-content\/uploads\/2021\/12\/img_490-2.png\" alt=\"IMG_490\" \/> .<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A. T\u00d3M T\u1eaeT KI\u1ebeN TH\u1ee8C C\u01a0 B\u1ea2N I \u2013 GI\u00c1 TR\u1eca L\u01af\u1ee2NG GI\u00c1C C\u1ee6A CUNG 1. \u0110\u1ecbnh ngh\u0129a Tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n l\u01b0\u1ee3ng gi\u00e1c cho cung c\u00f3 s\u0111 (c\u00f2n vi\u1ebft ..) Tung \u0111\u1ed9 c\u1ee7a \u0111i\u1ec3m g\u1ecdi l\u00e0 sin c\u1ee7a v\u00e0 k\u00ed hi\u1ec7u l\u00e0 Ho\u00e0nh \u0111\u1ed9 c\u1ee7a \u0111i\u1ec3m g\u1ecdi l\u00e0 c\u00f4sin c\u1ee7a v\u00e0 k\u00ed hi\u1ec7u l\u00e0 N\u1ebfu [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[41],"tags":[],"class_list":["post-20181","post","type-post","status-publish","format-standard","hentry","category-toan-lop-10"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/20181","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=20181"}],"version-history":[{"count":1,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/20181\/revisions"}],"predecessor-version":[{"id":20414,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/20181\/revisions\/20414"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=20181"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=20181"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=20181"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}