... Trong k thi Quc Gia nm 201 5 cú tt c mụn thi gm Toỏn, Vn, Ngoi ng, Lý, Húa, Sinh, S, a Mt trng i hc X s dng kt qu mụn thi mụn thi ú lp thnh mt thi Hi trng i hc X cú th s dng bao nhiờu thi tuyn ... NMHIEUPDP.WORDPRESS.COM THI TH K THI THPT QUC GIA s 15 Mụn : TON Thi gian lm bi 180 phỳt Cõu (2,0 im) Cho hm s y = x3 + 3x + a) Kho sỏt s bin thi n v v th (C) ca hm s ó cho b) Tỡm giao im ca (C) vi ... NMHIEUPDP.WORDPRESS.COM THI TH K THI THPT QUC GIA ỏp ỏn s 06 Mụn : TON Thi gian lm bi 180 phỳt Cõu 1a (1,0 im) Tp xỏc nh : D = R S bin thi n : + Gii hn ti vụ cc : lim y = +; lim y = x+ y x + Bng bin thi n...