... = 1. 1 0 (1 )xI x e dx= +ũ t 1 x xu x du d xdv e dx v eỡ ỡù ù= + =ù ùù ùịớ ớù ù= =ù ùù ùợ ợ. Thay vo cụng thc tớch phõn tng phn ta c: 1 1 1 1 0 1 0000 (1 ) (1 1) (1 0) ... (loai)2 2 1 [0;2]0 ( 2) 0 2 02 [0;2]xxy e x x x xxộ= ẻờÂ= + - = + - = ờ= - ẽờở Ta cú, 1 2 (1) (1 1 1) f e e= - - = -0 2(0) (0 0 1) 1f e= - - = -2 2 2(2) (2 2 1) f e e= - ... 0) 2 1 ( )x x xI x e e dx e e e e e e e= + - = + - + - = - - - =ũ Vy, 1 0 (1 )xI x e dx e= + =ũ Hm s 2( 1) xy e x x= - - liờn tc trờn on [0;2] 2 2 2 2( ) ( 1) ( 1) ( 1) (2 1) (...