... s 4 THI TH I HC V CAO NG NM 2010 Mụn thi: TON Thi gian: 180 phỳt (khụng k thi gian phỏt ) I. PHN CHUNG (7 im) Cõu I (2 im): Cho hm s xyx211-=+. 1) Kho sỏt s bin thi n v v ... 2). Gi s B(1; b) ẻ d1, C(c; 2) ẻ d2. ABbACc(4 ;2), (3;4)= = uuuruuur. Ta cú: ABACBC2.050ỡù=ớ=ùợuuuruuur bcbc5,01,6ộ==ờ=-=ở ị ABCABC(3 ;2), (1;5),(0 ;2) (3 ;2), (1;1),(6 ;2) ộ ... xyxyxy2253945log(32)log( 32)1 ỡ-=ớ+ =ợ. ============================ Trn S Tựng Hng dn: I. PHN CHUNG Cõu I: 2) TC: x1=-; TCX: y2= ị M(1; 2). Gi s xIxx00021;1ổử-ỗữ+ốứ...