... max P = 0 ,25 0 ,25 0 ,25 a = b = c = 0 ,25 THI TH K THI THPT QUC GIA LN S GD V T BC GIANG TRNG THPT NGễ S LIấN Nm hc 2015 - 2016 MễN: TON LP 12 Thi gian lm bi: 120 phỳt, khụng k thi gian phỏt ... ;y 2 2 P xy 0 ,25 0 ,25 0 ,25 0 ,25 TRNG THPT KHOI CHU CHNH THC THI KHO ST CHT LNG LN I Nm hc 2015 2016 MễN: TON LP 12 Thi gian lm bi: 150 phỳt, khụng k thi gian giao ( thi gm 01 trang) Cõu ... y 0 .25 0 .25 0 .25 TRNG I HC VINH TRNG THPT CHUYấN THI TH THPT QUC GIA NM 2016 Mụn: TON Thi gian lm bi: 180 phỳt, khụng k thi gian phỏt 1 x m x mx (1), m l tham s 3 a) Kho sỏt s bin thi n...