... 63log 2 0 ,25 0 ,25 0 ,25 0 ,25 0 ,25 0 ,25 0 ,25 0 ,25 0 ,25 TRNGTHPTCHUYấNLấQUíễN PNTHITHIHCNM2011TNHQUNGTR Mụn:TONKhi:AB Thigianlmbi:180phỳt,khụngkthigianphỏtTHITHLN2PHNCHUNG(7im)imCõuI.(2im)mxmmmxmxy ... ịmmxBmxmmmA 2 22 00 2 mxmIA + + = ị0 2 1 2 mxIB + =0 2 ( ) 122 2 12. 2 1 22 = + = + = = mmIBIAIABS { }55 - ẻmCõuII(2im)Giiphngtrỡnh1. ( ) ( ) 12 13 121 2 = + - + + - xxxx ... pxxdx I 2 1 2 = I Vy, 2 14 21 + = + = pIIICõuIV(1im)Gi I ltrungmcnhCD ( ) ợ ớ ỡ ^ ^ ịCDBICDAIGtAB a BIAI = = = 2 3,(1)0 ,25 0 ,25 0 ,25 0 ,25 0,500 ,25 0 ,25 0 ,25 0 ,25 (Chn...