... QUNG NAM TRNG THPT NGUYN THI BèNH THAM KHO ễN THI TT NGHIP THPT MễN TểAN Thi gian lm bi: 150 phỳt A PHN CHUNG (7 IM) Cõu I (3im): Cho hm s y = x 3x , cú th (C) Kho sỏt s bin thi n v v th ... QUNG NAM TRNG THPT KHM C THAM KHO ễN THI TT NGHIP THPT MễN TểAN Thi gian lm bi: 150 phỳt I PHN DNG CHUNG CHO TT C TH SINH ( 7, im ) Cõu I.( im) Cho hm s y = x + 3x 1 Kho sỏt s bin thi n v v ... TRNG THPT HYNH NGC HU THAM KHO ễN THI TT NGHIP THPT MễN TểAN Thi gian lm bi: 150 phỳt I PHN CHUNG CHO TT C TH SINH: (7,0 im) Cõu I: ( 3,0 im ) Cho hm s : y = x3 + 3x2 1) Kho sỏt s bin thi n...