{"id":7700,"date":"2021-11-20T14:19:54","date_gmt":"2021-11-20T07:19:54","guid":{"rendered":"https:\/\/www.vietlearn.org\/post\/?p=7700"},"modified":"2021-11-20T17:13:30","modified_gmt":"2021-11-20T10:13:30","slug":"vi-sao-thanh-go-dai-1-m-moi-ngay-lay-mot-nua-se-muon-doi-khong-lay-het","status":"publish","type":"post","link":"https:\/\/www.vietlearn.org\/kien-thuc\/vi-sao-thanh-go-dai-1-m-moi-ngay-lay-mot-nua-se-muon-doi-khong-lay-het\/","title":{"rendered":"V\u00ec sao \u201cthanh g\u1ed7 d\u00e0i 1 m, m\u1ed7i ng\u00e0y l\u1ea5y m\u1ed9t n\u1eeda\u201d s\u1ebd mu\u00f4n \u0111\u1eddi kh\u00f4ng l\u1ea5y h\u1ebft?"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Th\u1eddi Chi\u1ebfn Qu\u1ed1c \u1edf Trung Qu\u1ed1c, C\u00f4ng T\u00f4n Long \u0111\u00e3 \u0111\u01b0a ra m\u1ed9t c\u00e2u n\u00f3i quan tr\u1ecdng \u201cThanh g\u1ed7 d\u00e0i 1 th\u01b0\u1edbc, m\u1ed7i ng\u00e0y l\u1ea5y \u0111i m\u1ed9t n\u1eeda, mu\u00f4n \u0111\u1eddi kh\u00f4ng l\u1ea5y h\u1ebft \u0111\u01b0\u1ee3c\u201d.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e2u n\u00f3i \u0111\u00f3 c\u00f3 ngh\u0129a g\u00ec?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thanh g\u1ed7 d\u00e0i 1 th\u01b0\u1edbc, ng\u00e0y th\u1ee9 nh\u1ea5t l\u1ea5y \u0111i m\u1ed9t n\u1eeda s\u1ebd c\u00f2n l\u1ea1i 1\/2, ng\u00e0y th\u1ee9 hai l\u1ea1i l\u1ea5y ti\u1ebfp 1\/2 ph\u1ea7n c\u00f2n l\u1ea1i t\u1ee9c l\u1ea5y \u0111i 1\/2 x 1\/2 = 1\/4 th\u01b0\u1edbc\u2026c\u1ee9 ti\u1ebfp t\u1ee5c nh\u01b0 th\u1ebf s\u1ebd ti\u1ebfp t\u1ee5c l\u1ea5y 1\/8 th\u01b0\u1edbc\u2026 t\u1ea5t c\u1ea3 s\u1ebd th\u00e0nh chu\u1ed7i s\u1ed1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">R\u00f5 r\u00e0ng khi n t\u0103ng \u0111\u1ebfn v\u00f4 h\u1ea1n th\u00ec 2n s\u1ebd l\u1edbn \u0111\u1ebfn v\u00f4 h\u1ea1n c\u00f2n 1\/2n gi\u1ea3m nh\u1ecf \u0111\u1ebfn v\u00f4 h\u1ea1n, nh\u01b0ng cho d\u00f9 n l\u1edbn \u0111\u1ebfn bao nhi\u00eau th\u00ec 1\/2n v\u1eabn kh\u00f4ng th\u1ec3 b\u1eb1ng 0 \u0111\u01b0\u1ee3c. V\u00ec v\u1eady c\u00e2u n\u00f3i l\u1ea5y m\u00e3i kh\u00f4ng h\u1ebft h\u00e0m \u00fd kh\u00e1i ni\u1ec7m gi\u1edbi h\u1ea1n. D\u00f9ng k\u00ed hi\u1ec7u c\u1ee7a to\u00e1n h\u1ecdc hi\u1ec7n \u0111\u1ea1i ta c\u00f3 th\u1ec3 vi\u1ebft .<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Gi\u1edbi h\u1ea1n l\u00e0 kh\u00e1i ni\u1ec7m quan tr\u1ecdng trong to\u00e1n h\u1ecdc. V\u00e0o th\u1ebf k\u1ec9 th\u1ee9 ba L\u01b0u Huy \u0111\u00e3 s\u00e1ng t\u1ea1o ph\u01b0\u01a1ng ph\u00e1p chia c\u1eaft v\u00f2ng tr\u00f2n. \u00d4ng \u0111\u00e3 ph\u00e1t hi\u1ec7n khi t\u0103ng s\u1ed1 c\u1ea1nh c\u1ee7a \u0111a gi\u00e1c \u0111\u1ec1u n\u1ed9i ti\u1ebfp trong v\u00f2ng tr\u00f2n \u0111\u1ebfn v\u00f4 h\u1ea1n, th\u00ec di\u1ec7n t\u00edch c\u1ee7a \u0111a gi\u00e1c \u0111\u1ec1u n\u1ed9i ti\u1ebfp s\u1ebd ti\u1ebfn g\u1ea7n \u0111\u1ebfn di\u1ec7n t\u00edch c\u1ee7a h\u00ecnh tr\u00f2n v\u00e0 \u00f4ng \u0111\u00e3 d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ec3 t\u00ednh s\u1ed1 \u03c0. Sau n\u00e0y T\u1ed5 Xung Chi \u0111\u00e3 d\u00f9ng ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u1ec3 t\u00ednh s\u1ed1 \u03c0 c\u00f3 7 s\u1ed1 l\u1ebb sau d\u1ea5u ph\u1ea3y.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00e1i ni\u1ec7m gi\u1edbi h\u1ea1n ch\u00ednh l\u00e0 c\u01a1 s\u1edf cho ph\u00e9p t\u00ednh vi ph\u00e2n, t\u00edch ph\u00e2n hi\u1ec7n \u0111\u1ea1i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u1eeb kho\u00e1: Gi\u1edbi h\u1ea1n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"<p>Th\u1eddi Chi\u1ebfn Qu\u1ed1c \u1edf Trung Qu\u1ed1c, C\u00f4ng T\u00f4n Long \u0111\u00e3 \u0111\u01b0a ra m\u1ed9t c\u00e2u n\u00f3i quan tr\u1ecdng \u201cThanh g\u1ed7 d\u00e0i 1 th\u01b0\u1edbc, m\u1ed7i ng\u00e0y l\u1ea5y \u0111i m\u1ed9t n\u1eeda, mu\u00f4n \u0111\u1eddi kh\u00f4ng l\u1ea5y h\u1ebft \u0111\u01b0\u1ee3c\u201d. C\u00e2u n\u00f3i \u0111\u00f3 c\u00f3 ngh\u0129a g\u00ec? Thanh g\u1ed7 d\u00e0i 1 th\u01b0\u1edbc, ng\u00e0y th\u1ee9 nh\u1ea5t l\u1ea5y \u0111i m\u1ed9t n\u1eeda s\u1ebd c\u00f2n l\u1ea1i [&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":[15,9],"tags":[],"class_list":["post-7700","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-toan-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7700","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=7700"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/7700\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=7700"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=7700"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=7700"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}