Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn<\/p>\n\n\n\n
R\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c la\u0300 m\u00f4\u0323t trong nh\u01b0\u0303ng da\u0323ng toa\u0301n c\u01a1 ba\u0309n ma\u0300 t\u00e2\u0301t ca\u0309 chu\u0301ng c\u00e2\u0300n n\u0103\u0301m \u0111\u01b0\u01a1\u0323c. No\u0301 kh\u00f4ng chi\u0309 phu\u0323c vu\u0323 cho ca\u0301c ba\u0300i toa\u0301n r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c th\u00f4ng th\u01b0\u01a1\u0300ng ma\u0300 co\u0300n la\u0300 ti\u00ea\u0300n \u0111\u00ea\u0300 \u0111\u00ea\u0309 chinh phu\u0323c ca\u0301c da\u0323ng toa\u0301n kha\u0301c. \u01a0\u0309 ba\u0300i vi\u00ea\u0301t l\u00e2\u0300n na\u0300y, ha\u0303y cu\u0300ng v\u01a1\u0301i Vietlearn \u0111i ti\u0300m hi\u00ea\u0309u v\u00ea\u0300 ca\u0301c da\u0323ng toa\u0301n r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c l\u1edbp 9. Co\u0301 nh\u01b0\u0303ng gi\u0300 c\u00e2\u0300n l\u01b0u y\u0301 da\u0300nh cho ba\u0323n \u0111o\u0323c \u01a1\u0309 chu\u0309 \u0111\u00ea\u0300 na\u0300y?<\/p>\n\n\n\n
R\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c l\u1edbp 9 c\u00f9ng toppy<\/p>\n\n\n\n
R\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c la\u0300 gi\u0300?<\/p>\n\n\n\n
Ba\u0300i t\u00e2\u0323p r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c l\u1edbp 9 la\u0300 m\u00f4\u0323t trong nh\u01b0\u0303ng da\u0323ng toa\u0301n \u0111a\u0303 \u0111\u01b0\u01a1\u0323c ho\u0323c t\u01b0\u0300 khi ba\u0323n co\u0300n thu\u00f4\u0323c c\u00e2\u0301p b\u00e2\u0323c ti\u00ea\u0309u ho\u0323c. S\u01a1\u0309 di\u0303, sau m\u00f4\u0303i c\u00e2\u0301p ho\u0323c, m\u01b0\u0301c \u0111\u00f4\u0323 cu\u0309a ca\u0301c ba\u0300i toa\u0300n r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c la\u0323i t\u0103ng l\u00ean. \u0110i ke\u0300m v\u01a1\u0301i no\u0301 la\u0300 nh\u01b0\u0303ng ph\u01b0\u01a1ng pha\u0301p gia\u0309ng da\u0323y va\u0300 ho\u0323c kha\u0301c nhau. Tuy nhi\u00ean v\u00ea\u0300 ba\u0309n ch\u00e2\u0301t, r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c kh\u00f4ng h\u00ea\u0300 thay \u0111\u00f4\u0309i.<\/p>\n\n\n\n
r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c cu\u0323 th\u00ea\u0309 la\u0300 ha\u0300nh \u0111\u00f4\u0323ng ma\u0300 ng\u01b0\u01a1\u0300i ho\u0323c bi\u00ea\u0301n \u0111\u00f4\u0309i m\u00f4\u0323t bi\u1ec3u th\u1ee9c \u01a1\u0309 da\u0323ng ph\u01b0\u0301c ta\u0323p v\u00ea\u0300 da\u0323ng \u0111\u01a1n gia\u0309n nh\u00e2\u0301t. Da\u0323ng \u0111\u01a1n gia\u0309n \u01a1\u0309 \u0111\u00e2y co\u0301 c\u00e2\u0301u tru\u0301c nh\u01b0 na\u0300o phu\u0323 thu\u00f4\u0323c va\u0300o y\u00eau c\u00e2\u0300u cu\u0309a ba\u0300i toa\u0301n \u0111\u01b0a ra.<\/p>\n\n\n\n
\u0110\u00f4\u0301i v\u01a1\u0301i r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c l\u1edbp 9 thi\u0300 r\u00fat g\u1ecdn bi\u00ea\u0309u ch\u01b0\u0301a c\u0103n th\u01b0\u0301c b\u00e2\u0323c hai \u0111\u01b0\u01a1\u0323c xem la\u0300 da\u0323ng ba\u0300i t\u00e2\u0323p ph\u01b0\u0301c ta\u0323p nh\u00e2\u0301t. B\u00ean ca\u0323nh \u0111o\u0301 thi\u0300 cu\u0303ng co\u0300n ca\u0301c da\u0323ng toa\u0301n kha\u0301c nh\u01b0 r\u00fat g\u1ecdn ph\u00e2n th\u01b0\u0301c, r\u00fat g\u1ecdn \u0111a th\u01b0\u0301c nhi\u00ea\u0300u bi\u00ea\u0301n,\u2026<\/p>\n\n\n\n
R\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c l\u00e0 g\u00ec<\/p>\n\n\n\n
Nh\u01b0\u0303ng da\u0323ng ba\u0300i t\u00e2\u0323p r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c l\u1edbp 9<\/p>\n\n\n\n
r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c l\u1edbp 9 bao g\u00f4\u0300m r\u00e2\u0301t nhi\u00ea\u0300u da\u0323ng toa\u0301n kha\u0301c nhau. Trong \u0111o\u0301 bao ha\u0300m ca\u0309 ca\u0301c da\u0323ng toa\u0301n li\u00ean quan c\u00e2\u0300n s\u01b0\u0309 du\u0323ng \u0111\u00ea\u0301n ki\u00ea\u0301n th\u01b0\u0301c r\u00fat g\u1ecdn \u0111\u00ea\u0309 th\u01b0\u0323c hi\u00ea\u0323n.<\/p>\n\n\n\n
Da\u0323ng 1: r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c<\/p>\n\n\n\n
\u0110\u00e2y la\u0300 da\u0323ng toa\u0301n c\u01a1 ba\u0309n va\u0300 chi\u0301nh xa\u0301c nh\u00e2\u0301t v\u00ea\u0300 r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c. Y\u00eau c\u00e2\u0300u cu\u0309a \u0111\u00ea\u0300 ba\u0300i th\u01b0\u01a1\u0300ng la\u0300 r\u00fat g\u1ecdn ca\u0301c \u0111a th\u01b0\u0301c, ph\u00e2n th\u01b0\u0301c,\u2026 \u0110\u00f4\u0301i v\u01a1\u0301i toa\u0301n ho\u0323c l\u1edbp 9 thi\u0300 th\u01b0\u01a1\u0300ng la\u0300 r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c ch\u01b0\u0301a c\u0103n b\u00e2\u0323c hai, b\u00e2\u0323c ba,\u2026<\/p>\n\n\n\n
\u0110\u00f4\u0301i v\u01a1\u0301i da\u0323ng ba\u0300i t\u00e2\u0323p r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c l\u1edbp 9, ho\u0323c sinh th\u01b0\u01a1\u0300ng hay m\u0103\u0301c sai l\u00e2\u0300m \u01a1\u0309 ca\u0301c \u0111i\u00ea\u0300u ki\u00ea\u0323n xa\u0301c \u0111i\u0323nh. \u0110\u0103\u0323c bi\u00ea\u0323t v\u01a1\u0301i ca\u0301c ba\u0300i toa\u0301n r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c ch\u01b0\u0301a c\u0103n b\u00e2\u0323c hai, \u0111i\u00ea\u0300u ki\u00ea\u0323n xa\u0301c \u0111i\u0323nh la\u0300 h\u00ea\u0301t s\u01b0\u0301c quan tro\u0323ng (bi\u1ec3u th\u1ee9c trong c\u0103n l\u01a1\u0301n h\u01a1n ho\u0103\u0323c b\u0103\u0300ng 0, bi\u1ec3u th\u1ee9c \u01a1\u0309 m\u00e2\u0303u trong c\u0103n kha\u0301c 0,\u2026).<\/p>\n\n\n\n
Da\u0323ng 2: Ti\u0301nh gia\u0301 tri\u0323 bi\u1ec3u th\u1ee9c<\/p>\n\n\n\n
Ca\u0301c da\u0323ng ba\u0300i t\u00e2\u0323p ti\u0301nh gia\u0301 tri\u0323 bi\u1ec3u th\u1ee9c cu\u0303ng c\u00e2\u0300n s\u01b0\u0309 du\u0323ng t\u01a1\u0301i r\u00fat g\u1ecdn. Ng\u01b0\u01a1\u0300i la\u0300m c\u00e2\u0300n r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c v\u00ea\u0300 da\u0323ng \u0111\u01a1n gia\u0309n nh\u00e2\u0301t. T\u01b0\u0300 \u0111o\u0301 ta\u0323o ra thu\u00e2\u0323n l\u01a1\u0323i trong vi\u00ea\u0323c ti\u0301nh toa\u0301n. \u0110\u0103\u0323c bi\u00ea\u0323t v\u01a1\u0301i ca\u0301c ba\u0300i toa\u0300n cho tr\u01b0\u01a1\u0301c gia\u0301 tri\u0323 cu\u0309a x thi\u0300 pha\u0309i ki\u00ea\u0309m tra \u0111i\u00ea\u0300u ki\u00ea\u0323n xem gia\u0301 tri\u0323 na\u0300y co\u0301 tho\u0309a ma\u0303n nh\u01b0\u0303ng \u0111i\u00ea\u0300u ki\u00ea\u0323n xa\u0301c \u0111i\u0323nh hay kh\u00f4ng.<\/p>\n\n\n\n
C\u00e1c d\u1ea1ng b\u00e0i t\u1eadp r\u00fat g\u1ecdn c\u01a1 b\u1ea3n<\/p>\n\n\n\n
Da\u0323ng 3: Ti\u0300m gia\u0301 tri\u0323 l\u01a1\u0301n nh\u00e2\u0301t, nho\u0309 nh\u00e2\u0301t<\/p>\n\n\n\n
\u0110\u00e2y la\u0300 ca\u0301c da\u0323ng ba\u0300i t\u00e2\u0323p \u0111\u0103\u0323c bi\u00ea\u0323t pha\u0309i s\u01b0\u0309 du\u0323ng ph\u01b0\u01a1ng pha\u0301p r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c. bi\u1ec3u th\u1ee9c ban \u0111\u00e2\u0300u th\u01b0\u01a1\u0300ng \u01a1\u0309 da\u0323ng t\u01b0\u01a1ng \u0111\u00f4\u0301i ph\u01b0\u0301c ta\u0323p. Ng\u01b0\u01a1\u0300i du\u0300ng c\u00e2\u0300n bi\u00ea\u0301n \u0111\u00f4\u0309i sao cho chu\u0301ng tr\u01a1\u0309 v\u00ea\u0300 ca\u0301c da\u0323ng ph\u00e2n th\u01b0\u0301c co\u0301 ch\u01b0\u0301a \u00e2\u0309n \u01a1\u0309 t\u01b0\u0309 ho\u0103\u0323c m\u00e2\u0303u. \u01a0\u0309 m\u00f4\u0323t va\u0300i tr\u01b0\u01a1\u0300ng h\u01a1\u0323p bi\u00ea\u0301n \u0111\u00f4\u0309i v\u00ea\u0300 ca\u0301c da\u0323ng toa\u0301n co\u0301 th\u00ea\u0309 s\u01b0\u0309 du\u0323ng ca\u0301c \u0111i\u0323nh ly\u0301 n\u00e2ng cao nh\u01b0 cosy, bunhiacopxki,\u2026<\/p>\n\n\n\n
Da\u0323ng 4: Ca\u0301c ba\u0300i toa\u0301n v\u00ea\u0300 ti\u0301nh t\u00f4\u0309ng ca\u0301c da\u0303y co\u0301 quy lu\u00e2\u0323t<\/p>\n\n\n\n
\u0110\u00e2y la\u0300 da\u0323ng toa\u0301n bao g\u00f4\u0300m ca\u0301c da\u0303y s\u00f4\u0301 kha\u0301 da\u0300i ho\u0103\u0323c co\u0301 th\u00ea\u0309 la\u0300 da\u0303y ca\u0301c ph\u00e2n th\u01b0\u0301c. \u01a0\u0309 b\u01b0\u01a1\u0301c \u0111\u00e2\u0300u, ng\u01b0\u01a1\u0300i la\u0300m se\u0303 c\u00e2\u0300n xa\u0301c \u0111i\u0323nh \u0111\u01b0\u01a1\u0323c da\u0323ng toa\u0301n. B\u0103\u0300ng nh\u01b0\u0303ng ph\u01b0\u01a1ng pha\u0301p kha\u0301c nhau \u0111\u00ea\u0309 pha\u0301t hi\u00ea\u0323n ra quy lu\u00e2\u0323t cu\u0309a da\u0303y na\u0300y. S\u01b0\u0309 du\u0323ng ca\u0301c ca\u0301ch r\u00fat g\u1ecdn \u0111\u00ea\u0309 \u0111\u01b0a da\u0303y s\u00f4\u0301 v\u00ea\u0300 da\u0323ng \u0111\u01a1n gia\u0309n nh\u00e2\u0301t.<\/p>\n\n\n\n
Da\u0323ng 5: r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c ch\u01b0\u0301a m\u00f4\u0323t ho\u0103\u0323c nhi\u00ea\u0300u \u00e2\u0309n<\/p>\n\n\n\n
r\u00fat g\u1ecdn bi\u00ea\u0309u ch\u01b0\u0301a m\u00f4\u0323t ho\u0103\u0323c nhi\u00ea\u0300u \u00e2\u0309n cu\u0303ng la\u0300 da\u0323ng toa\u0301n t\u01b0\u01a1ng \u0111\u00f4\u0301i c\u01a1 ba\u0309n. Th\u00f4ng th\u01b0\u01a1\u0300ng, ng\u01b0\u01a1\u0300i ta se\u0303 ti\u0300m ca\u0301ch r\u00fat g\u1ecdn s\u00f4\u0301 \u00e2\u0309n. S\u00f4\u0301 l\u01b0\u01a1\u0323ng \u00e2\u0309n ca\u0300ng i\u0301t thi\u0300 ba\u0300i toa\u0301n r\u00fat g\u1ecdn ca\u0300ng tr\u01a1\u0309 n\u00ean \u0111\u01a1n gia\u0309n. \u00c2\u0309n m\u01a1\u0301i co\u0301 th\u00ea\u0309 ti\u0300m \u0111\u01b0\u01a1\u0323c d\u01b0\u0323a tr\u00ean m\u00f4\u0303i li\u00ean h\u00ea\u0323 cu\u0309a nh\u01b0\u0303ng \u00e2\u0309n s\u0103\u0303n co\u0301.<\/p>\n\n\n\n
Da\u0323ng 6: So sa\u0301nh bi\u1ec3u th\u1ee9c v\u01a1\u0301i h\u0103\u0300ng s\u00f4\u0301 ho\u0103\u0323c v\u01a1\u0301i ca\u0301c bi\u1ec3u th\u1ee9c kha\u0301c<\/p>\n\n\n\n
\u0110\u00ea\u0309 so sa\u0301nh ca\u0301c bi\u1ec3u th\u1ee9c v\u01a1\u0301i m\u00f4\u0323t h\u0103\u0300ng s\u00f4\u0301 ho\u0103\u0323c v\u01a1\u0301i ca\u0301c bi\u1ec3u th\u1ee9c kha\u0301c thi\u0300 cu\u0303ng c\u00e2\u0300n r\u00fat g\u1ecdn. N\u00ea\u0301u la\u0300 so sa\u0301nh v\u01a1\u0301i ca\u0301c h\u0103\u0300ng s\u00f4\u0301 thi\u0300 no\u0301 kha\u0301 gi\u00f4\u0301ng v\u01a1\u0301i ba\u0300i toa\u0301n ti\u0301nh gia\u0301 tri\u0323 bi\u1ec3u th\u1ee9c. Co\u0300n n\u00ea\u0301u la\u0300 so sa\u0301nh gi\u01b0\u0303a ca\u0301c bi\u1ec3u th\u1ee9c v\u01a1\u0301i nhau thi\u0300 bi\u00ea\u0301n \u0111\u00f4\u0309i r\u00fat g\u1ecdn sao cho ca\u0301c bi\u1ec3u th\u1ee9c co\u0301 da\u0323ng gi\u00f4\u0301ng nhau.<\/p>\n\n\n\n
Da\u0323ng 7: Ti\u0300m gia\u0301 tri\u0323 cu\u0309a \u00e2\u0309n \u0111\u00ea\u0309 bi\u1ec3u th\u1ee9c tho\u0309a ma\u0303n \u0111i\u00ea\u0300u ki\u00ea\u0323n gi\u0300 \u0111o\u0301<\/p>\n\n\n\n
\u0110\u00e2y la\u0300 da\u0323ng toa\u0301n co\u0301 li\u00ean quan t\u01a1\u0301i ba\u0300i toa\u0301n r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c. Tuy nhi\u00ean, c\u00f4ng vi\u00ea\u0323c chi\u0301nh kh\u00f4ng pha\u0309i la\u0300 r\u00fat g\u1ecdn ma\u0300 ti\u0301nh toa\u0301n bi\u1ec3u th\u1ee9c. Th\u00f4ng th\u01b0\u01a1\u0300ng, \u0111\u00ea\u0300 ba\u0300i se\u0303 y\u00eau c\u00e2\u0300u ti\u0300m gia\u0301 tri\u0323 cu\u0309a \u00e2\u0309n \u0111\u00ea\u0309 bi\u1ec3u th\u1ee9c A > B. Gia\u0309 b\u00e2\u0301t ph\u01b0\u01a1ng tri\u0300nh A-B > 0 \u0111\u00ea\u0309 ti\u0300m x.<\/p>\n\n\n\n
Da\u0323ng 8: Ti\u0300m gia\u0301 tri\u0323 cu\u0309a tham s\u00f4\u0301 m \u0111\u00ea\u0309 \u00e2\u0309n tho\u0309a ma\u0303n ph\u01b0\u01a1ng tri\u0300nh ho\u0103\u0323c b\u00e2\u0301t ph\u01b0\u01a1ng tri\u0300nh<\/p>\n\n\n\n
\u0110\u00e2y la\u0300 da\u0323ng toa\u0301n t\u01b0\u01a1ng \u0111\u00f4\u0301i quen thu\u00f4\u0323c. Chu\u0301ng ta co\u0301 ca\u0301ch la\u0300m chung cho da\u0323ng toa\u0301n na\u0300y la\u0300 \u0111\u01b0a ph\u01b0\u01a1ng tri\u0300nh v\u00ea\u0300 da\u0323ng: f(m). x = k. \u0110\u00f4\u0301i v\u01a1\u0301i ph\u01b0\u01a1ng tri\u0300nh s\u01b0\u0309 du\u0323ng d\u00e2\u0301u b\u0103\u0300ng. \u0110\u00f4\u0301i v\u01a1\u0301i ca\u0301c b\u00e2\u0301t ph\u01b0\u01a1ng tri\u0300nh s\u01b0\u0309 du\u0323ng ca\u0301c d\u00e2\u0301u \u201c>, <, >=, <=\u201d.<\/p>\n\n\n\n
Da\u0323ng 8: Ti\u0300m gia\u0301 tri\u0323 cu\u0309a tham s\u00f4\u0301 m \u0111\u00ea\u0309 \u00e2\u0309n tho\u0309a ma\u0303n ph\u01b0\u01a1ng tri\u0300nh ho\u0103\u0323c b\u00e2\u0301t ph\u01b0\u01a1ng tri\u0300nh<\/p>\n\n\n\n
\u0110\u00e2y la\u0300 da\u0323ng toa\u0301n t\u01b0\u01a1ng \u0111\u00f4\u0301i quen thu\u00f4\u0323c. Chu\u0301ng ta co\u0301 ca\u0301ch la\u0300m chung cho da\u0323ng toa\u0301n na\u0300y la\u0300 \u0111\u01b0a ph\u01b0\u01a1ng tri\u0300nh v\u00ea\u0300 da\u0323ng: f(m). x = k. \u0110\u00f4\u0301i v\u01a1\u0301i ph\u01b0\u01a1ng tri\u0300nh s\u01b0\u0309 du\u0323ng d\u00e2\u0301u b\u0103\u0300ng. \u0110\u00f4\u0301i v\u01a1\u0301i ca\u0301c b\u00e2\u0301t ph\u01b0\u01a1ng tri\u0300nh s\u01b0\u0309 du\u0323ng ca\u0301c d\u00e2\u0301u \u201c>, <, >=, <=\u201d.<\/p>\n\n\n\n
Da\u0323ng 9: Ti\u0300m \u00e2\u0309n \u0111\u00ea\u0309 ph\u01b0\u01a1ng tri\u0300nh tho\u0309a ma\u0303n v\u01a1\u0301i d\u00e2\u0301u gia\u0301 tri\u0323 tuy\u00ea\u0323t \u0111\u00f4\u0301i<\/p>\n\n\n\n
Ph\u01b0\u01a1ng pha\u0301p cu\u0309a da\u0323ng ba\u0300i na\u0300y la\u0300 t\u01b0\u01a1ng \u0111\u00f4\u0301i r\u00f4\u0323ng. Tu\u0300y va\u0300o t\u01b0\u0300ng tr\u01b0\u01a1\u0300ng h\u01a1\u0323p d\u00e2\u0301u gia\u0301 tri\u0323 tuy\u00ea\u0323t \u0111\u00f4\u0301i kha\u0301c nhau ma\u0300 ng\u01b0\u01a1\u0300i du\u0300ng c\u00e2\u0300n linh hoa\u0323t s\u01b0\u0309 du\u0323ng. S\u01b0\u0309 du\u0323ng k\u00ea\u0301t h\u01a1\u0323p ph\u01b0\u01a1ng pha\u0301p r\u00fat g\u1ecdn sau khi \u0111\u01b0a \u0111\u01b0\u01a1\u0323c bi\u1ec3u th\u1ee9c ra kho\u0309i d\u00e2\u0301u tri\u0323 tuy\u00ea\u0323t \u0111\u00f4\u0301i.<\/p>\n\n\n\n
Bi\u1ebfn \u0111\u1ed5i \u0111\u01a1n gi\u1ea3n bi\u1ec3u th\u1ee9c ch\u1ee9a c\u0103n th\u1ee9c b\u1eadc hai<\/p><\/blockquote>\n\n\n\n
Ba\u0300i t\u00e2\u0323p r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c l\u1edbp 9 cu\u0323 th\u00ea\u0309<\/p>\n\n\n\n
Ba\u0300i t\u00e2\u0323p r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c ch\u01b0\u0301a c\u0103n l\u1edbp 9 la\u0300 m\u00f4\u0323t trong nh\u01b0\u0303ng da\u0323ng ba\u0300i t\u00e2\u0323p ch\u0103\u0301c ch\u0103\u0301n co\u0301 khi \u0111i thi va\u0300o 10. D\u01b0\u01a1\u0301i \u0111\u00e2y la\u0300 m\u00f4\u0323t va\u0300i vi\u0301 du\u0323 cu\u0323 th\u00ea\u0309 da\u0300nh cho ba\u0323n \u0111o\u0323c:<\/p>\n\n\n\n
C\u00e2u 1: Ti\u0301nh gia\u0301 tri\u0323 bi\u1ec3u th\u1ee9c<\/p>\n\n\n\n
C\u00e2u 2: r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c<\/p>\n\n\n\n
Hy vo\u0323ng v\u01a1\u0301i nh\u01b0\u0303ng ki\u00ea\u0301n th\u01b0\u0301c k\u00ea\u0309 tr\u00ean, ba\u0323n \u0111o\u0323c co\u0301 th\u00ea\u0309 hi\u00ea\u0309u ro\u0303 h\u01a1n v\u00ea\u0300 ba\u0300i toa\u0301n r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c l\u1edbp 9. Chu\u0301c ca\u0301c ba\u0323n co\u0301 \u0111\u01b0\u01a1\u0323c qua\u0301 tri\u0300nh ho\u0323c t\u00e2\u0323p vui ve\u0309 va\u0300 hi\u00ea\u0323u qua\u0309 nh\u00e2\u0301t cu\u0300ng Vietlearn h\u00f4m nay. \u0110\u00ea\u0309 chinh phu\u0323c Toa\u0301n ho\u0323c m\u00f4\u0323t ca\u0301ch d\u00ea\u0303 da\u0300ng, co\u0300n nga\u0323i gi\u0300 ma\u0300 ch\u01b0a \u0111\u00f4\u0300ng ha\u0300nh cu\u0300ng Vietlearn.<\/p>\n\n\n\n
<\/p>\n\n\n\n
C\u0103n b\u1eadc b<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
Ghi ch\u00fa: T\u00e0i li\u1ec7u tr\u00edch d\u1eabn R\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c la\u0300 m\u00f4\u0323t trong nh\u01b0\u0303ng da\u0323ng toa\u0301n c\u01a1 ba\u0309n ma\u0300 t\u00e2\u0301t ca\u0309 chu\u0301ng c\u00e2\u0300n n\u0103\u0301m \u0111\u01b0\u01a1\u0323c. No\u0301 kh\u00f4ng chi\u0309 phu\u0323c vu\u0323 cho ca\u0301c ba\u0300i toa\u0301n r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c th\u00f4ng th\u01b0\u01a1\u0300ng ma\u0300 co\u0300n la\u0300 ti\u00ea\u0300n \u0111\u00ea\u0300 \u0111\u00ea\u0309 chinh phu\u0323c ca\u0301c da\u0323ng toa\u0301n kha\u0301c. \u01a0\u0309 ba\u0300i vi\u00ea\u0301t […]<\/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":[9,4],"tags":[],"class_list":["post-1087","post","type-post","status-publish","format-standard","hentry","category-toan-hoc","category-trung-hoc"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1087","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=1087"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/1087\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=1087"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=1087"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=1087"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}