... 1 THI TH I HC V CAO NG NM 2010 Mụn thi: TON Khi ABDV Thi gian: 180 phỳt (khụng k thi gian phỏt ) I. PHN CHUNG (7 im) Cõu I (2 im): Cho hm s yxmmxm4222(1)1 =-- + +- (1) 1) Kho sỏt s bin thi n ... PPddananaaa11,4(1;1;1)ỡ^ộựị= =-- ớởỷ^ợVVVrrrrrrr ị (D): xtytzt376ỡ=+ù=+ớù =- . Cõu VII.a: aizziaiai222121421ộ =-+ =-= - =-+ ở. 2. Theo chng trỡnh nõng cao Cõu VI.b: 1) (C...
... xyxyxy3322()0+=+> ị xy0,0>>. (1) xyyx2 2 201 0- = xyxy2 . 2010 2 . 2010 = . Xột hm s: f(t) = tt . 2010 (t > 0). Ta cú: f Â(t) = tt 2010 10ln 2010 ổử+>ỗữốứ ị f(t) ng bin khi t > 0 ị f(x) ... mxmxxmx222(21)(*)1(1)1(**)(1) -- =ù - - = - T (**) ta cú mx22(1)(1 )-= - xmxm2ộ=ờ =- ã Vi x = m, thay vo (*) ta c: m00= (tho vi mi m). Vỡ x ạ 1 nờn m ạ 1. ã Vi x = 2 m, t...
... V: Vỡ ab01 ,01& lt;Ê<Ê nờn ( )( )ababab1 101 0-- -- + abab1ị+-abab1111(1)ị +- Tng t : bcbccaca1111111(2),1(3) +-+ - Cng cỏc BT (1), (2), (3) v theo v ta c: abbccaabc11111123(4)ổử+++ +- ữốứ S ... xtytzt12242ỡ=+ù =-- ớù=+ợ To giao im H ca IJ v (a) tho ( )xttytxHztyxyzz121211;1;242122302ỡỡ=+ =- ùùù =-- =- -- ớớ=+ =- -+ -= =ùùợợ
Trn S Tựng Vỡ H l trung im ca IJ nờ...
... hoc 1 4- . H s gúc ca d ti M l: yxx0 201( )0(1)Â =-& lt ;- ị yx01()4Â =- x 2011 4(1 )-= -- xyxy0000312532ộổử =-= ỗữờốứờổửờ==ỗữờốứở Vy cú hai tip tuyn tho món l: yx13(1)42 =-+ + hoc yx15(3)42 =-- + Cõu ... HSP H NI s 18 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 xyx21 1-= -....
... H NI s 19 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 yxmx42221=++ (1). 1) Kho sỏt s bin thi n v v th ... xx2240(2)1ỡ -& gt;ớ+ùợxx23ộ>ờ - (**) PT ( )xxx2222333log43log(2) log(2)4+ +-= xx2233log(2)3log(2)40++ +-= ( )( )xx2233log(2)4log(2)10++ +-= x23log(2)1+= x2(2)3+= x 23 =- Kim tr...