... =6,x2 =4,y2 = - VyA(6 - ),B(4 - ). 2 2 3 +Vi y1 = - ịx1 =4,x2 =6,y2 = - VyA(4 - ),B(6 - ). 2 2 VyA(6 - ),B(4 - ). 2 x -2 x +BPT (2 + 3) + (2 - 3) x - 2x Ê4 +Vi y1 = - 0,25 0,25 x 2- 2x V. (1im) ... 10 ỡ x = 1 0- x T(1)v(3)suyra: ớ ợ y1 + y2 = -2 ợy2 = -2 - y1 +AB= AB =5 ( x2 - x1 ) + ( y - y1) = (10 - x1 ) + ( -2 - y1) =5 Kthpvi(2)ta c: ộ y = - (4 + y1 )2 + ( -2 - y )2 = ờ y = - 0,25 3 ịx1 ... cosx ạ1 xạ m2 p (2) 0,25 1- 2cos2 x- cosx- 2sinx= 1- cosx -2 1- sin2 x - 2sinx= ( ) 2sin x- 2sin x- 2= sinx = sin x = (loi) IIư1 (1im) p ộ p x= - + k2 ổ p sinx= = sin - ữ ỗ p ố 4ứ x= + k2 p...