填空:-|||-(1) int (x)^3(e)^xdx= __ ;-|||-(2) int dfrac (x+5)({x)^2-6x+13}dx= __

int dfrac (x+5)({x)^2-6x+13}dx=-|||-__-|||-_________._______.

(18)int(x+5)/(x^2)-6x+13dx(18)$\int\frac{x+5}{x^{2}-6x+13}dx$

定积分(int )_(0)^1dfrac (2)({e)^-x+5}dx=_____.定积分_____.

int dfrac ({x)^3}({(1+{x)^2)}^2}dx=A.int dfrac ({x)^3}({(1+{x)^2)}^2}dx=B.int df

int dfrac (5x-1)({x)^2-x-2}dx= (.A.int dfrac (5x-1)({x)^2-x-2}dx= (B.int dfrac (

int ((x)^2-1)sin 2xdx.-|||-18. int dfrac ({ln )^3x}({x)^2}dx.

( 单选题 ) int dfrac ({e)^x}(1+{e)^2x}dx=_________int dfrac ({e)^x}(1+{e)^2x}dx=int

(9) int dfrac (x{e)^arctan x}({(1+{x)^2)}^dfrac (3{2)}}dx ;

int 1(e)^-2tdt-|||-.(int )_(1)^2xdx.-|||-.fxsin xcos xdx.-|||-15. int (x)^2(cos

int dfrac ({e)^x}({2)^x}dx;