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{"id":2402,"date":"2016-04-06T03:36:30","date_gmt":"2016-04-06T03:36:30","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=2402"},"modified":"2016-11-12T03:05:56","modified_gmt":"2016-11-12T03:05:56","slug":"thi-thpt-quoc-gia-2016-mon-toan-thi-sinh-can-chu-trong-nhung-kien-thuc-gi","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/thi-thpt-quoc-gia-2016-mon-toan-thi-sinh-can-chu-trong-nhung-kien-thuc-gi\/","title":{"rendered":"Thi THPT Qu\u1ed1c gia 2016 m\u00f4n To\u00e1n: Th\u00ed sinh c\u1ea7n ch\u00fa tr\u1ecdng nh\u1eefng ki\u1ebfn th\u1ee9c g\u00ec?"},"content":{"rendered":"

\u0110\u1ec3 c\u00f3 th\u1ec3 chu\u1ea9n b\u1ecb t\u1ed1t cho k\u1ef3 thi s\u1eafp t\u1edbi, th\u00ed sinh c\u1ea7n l\u01b0u \u00fd nh\u1eefng \u0111i\u1ec3m d\u01b0\u1edbi \u0111\u00e2y \u0111\u1ec3 c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111i\u1ec3m trong t\u1eebng c\u00e2u h\u1ecfi thu\u1ed9c \u0111\u1ec1 thi m\u00f4n To\u00e1n. <\/em><\/p>\n

1. B\u00e0i to\u00e1n v\u1ec1 kh\u1ea3o s\u00e1t s\u1ef1 bi\u1ebfn thi\u00ean v\u00e0 v\u1ebd \u0111\u1ed3 th\u1ecb h\u00e0m s\u1ed1.<\/strong><\/p>\n

\u0110\u00e2y l\u00e0 c\u00e2u h\u1ecfi t\u01b0\u01a1ng \u0111\u1ed1i d\u1ec5 gi\u00fap th\u00ed sinh c\u00f3 th\u1ec3 \u0103n \u0111i\u1ec3m tuy\u1ec7t \u0111\u1ed1i. \u0110i\u1ec1u th\u00ed sinh c\u1ea7n l\u01b0u \u00fd l\u00e0 t\u00ednh to\u00e1n th\u1eadt c\u1ea9n th\u1eadn t\u1eebng chi ti\u1ebft b\u1edfi th\u00ed sinh r\u1ea5t c\u00f3 th\u1ec3 s\u1ebd m\u1eafc ph\u1ea3i nh\u1eefng l\u1ed7i c\u01a1 b\u1ea3n nh\u01b0: thi\u1ebfu k\u00ed hi\u1ec7u g\u1ed1c t\u1ecda \u0111\u1ed9, thi\u1ebfu x, y, kh\u00f4ng chia \u0111\u1ed9; V\u1ebd \u0111\u1ed3 th\u1ecb kh\u00f4ng c\u00f3 \u0111\u1ed1i x\u1ee9ng, v\u1ebd l\u01a1 l\u1eedng hay kh\u00f4ng x\u00e1c \u0111\u1ecbnh t\u1ecda \u0111\u1ed9 c\u00e1c giao c\u1ee7a \u0111\u1ed3 th\u1ecb v\u1edbi hai tr\u1ee5c m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c (\u0111\u00f3 l\u00e0 c\u0103n c\u1ee9 \u0111\u1ec3 nh\u00ecn \u0111\u1ed3 th\u1ecb trong khi ch\u1ea5m b\u00e0i).<\/p>\n

2. X\u00e1c \u0111\u1ecbnh gi\u00e1 tr\u1ecb l\u1edbn nh\u1ea5t v\u00e0 nh\u1ecf nh\u1ea5t c\u1ee7a h\u00e0m s\u1ed1.<\/strong><\/p>\n

T\u00f9y theo t\u00ednh ch\u1ea5t c\u1ee7a t\u1eadp x\u00e1c \u0111\u1ecbnh \u0111\u01b0\u1ee3c n\u00eau trong b\u00e0i, th\u00ed sinh t\u00ecm c\u00e1ch ph\u00f9 h\u1ee3p nh\u1ea5t. \u0110\u1ed3ng th\u1eddi th\u00ed sinh c\u0169ng c\u1ea7n ch\u00fa \u00fd \u0111\u1ebfn c\u00e1c ki\u1ebfn th\u1ee9c nh\u01b0: T\u00ednh \u0111\u01a1n \u0111i\u1ec7u c\u1ee7a h\u00e0m s\u1ed1, b\u00e0i to\u00e1n t\u00ecm c\u1ef1c tr\u1ecb c\u1ee7a h\u00e0m s\u1ed1, b\u00e0i to\u00e1n ti\u1ebfp tuy\u1ebfn c\u1ee7a \u0111\u1ed3 th\u1ecb, \u2026.<\/p>\n

3. C\u00e2u h\u1ecfi c\u00f3 th\u1ec3 r\u01a1i v\u00e0o s\u1ed1 ph\u1ee9c v\u00e0 ph\u01b0\u01a1ng tr\u00ecnh logarit<\/strong><\/p>\n

V\u1edbi c\u00e2u h\u1ecfi s\u1ed1 ph\u1ee9c, th\u00ed sinh ch\u1ec9 c\u1ea7n bi\u1ebft c\u00e1c c\u00f4ng th\u1ee9c c\u01a1 b\u1ea3n, c\u00e1c thao t\u00e1c t\u00ednh to\u00e1n \u0111\u01a1n gi\u1ea3n l\u00e0 c\u00f3 th\u1ec3 l\u00e0m \u0111\u01b0\u1ee3c. \u0110i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i th\u1ef1c h\u00e0nh c\u1ea9n th\u1eadn, tr\u00e1nh sai l\u1ea7m trong t\u00ednh to\u00e1n.<\/p>\n

V\u1edbi c\u00e2u h\u1ecfi v\u1ec1 ph\u01b0\u01a1ng tr\u00ecnh logarit, th\u00ed sinh c\u1ea7n n\u1eafm ch\u1eafc c\u00e1c \u0111i\u1ec3m sau: ph\u01b0\u01a1ng tr\u00ecnh v\u00e0 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh m\u0169, ph\u01b0\u01a1ng tr\u00ecnh v\u00e0 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh logarit, b\u00e0i to\u00e1n li\u00ean quan \u0111\u1ebfn b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh. \u0110\u1eb7c bi\u1ec7t c\u1ea7n ch\u00fa \u00fd \u0111\u1eb7t \u0111i\u1ec1u ki\u1ec7n x\u00e1c \u0111\u1ecbnh v\u00e0 ki\u1ec3m tra tr\u01b0\u1edbc khi \u0111\u01b0a ra k\u1ebft lu\u1eadn<\/p>\n

4. B\u00e0i to\u00e1n v\u1ec1 t\u00edch ph\u00e2n. <\/strong><\/p>\n

N\u1ebfu r\u01a1i v\u00e0o d\u1ea1ng b\u00e0i n\u00e0y, th\u00ed sinh c\u1ea7n n\u1eafm v\u1eefng hai ph\u01b0\u01a1ng ph\u00e1p t\u00ednh l\u00e0 ph\u01b0\u01a1ng ph\u00e1p bi\u1ebfn \u0111\u1ed5i v\u00e0 ph\u01b0\u01a1ng ph\u00e1p t\u00edch ph\u00e2n t\u1eebng ph\u1ea7n, \u1ee9ng d\u1ee5ng \u0111\u1ec3 t\u00ednh t\u00edch ph\u00e2n\u2026<\/p>\n

5. B\u00e0i to\u00e1n t\u1ecda \u0111\u1ed9 trong kh\u00f4ng gian. <\/strong><\/p>\n

V\u1edbi d\u1ea1ng b\u00e0i n\u00e0y, th\u00ed sinh c\u1ea7n \u00f4n \u0111\u1ea7y \u0111\u1ee7 v\u1ec1 c\u00e1ch vi\u1ebft ph\u01b0\u01a1ng tr\u00ecnh c\u1ee7a m\u1eb7t ph\u1eb3ng, c\u1ee7a \u0111\u01b0\u1eddng th\u1eb3ng, c\u1ee7a m\u1eb7t c\u1ea7u\u2026.<\/p>\n

6. C\u00e2u h\u1ecfi v\u1ec1 l\u01b0\u1ee3ng gi\u00e1c ho\u1eb7c b\u00e0i to\u00e1n v\u1ec1 t\u1ed5 h\u1ee3p<\/strong><\/p>\n