_______.
_______.
填空:-|||-(1) int (x)^3(e)^xdx= __ ;-|||-(2) 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_____.
求下列不定积分 int dfrac (dx)(2sin x-cos x+5)求下列不定积分
int dfrac (5x-1)({x)^2-x-2}dx= (.A.int dfrac (5x-1)({x)^2-x-2}dx= (B.int dfrac (
int dfrac (x+1)({x)^2+4x+13}dx
(5) int dfrac (arctan x)(1+{x)^2}dx= __
;(11) int dfrac (x+1)({x)^2+2x+5}dx ;
int dfrac ({x)^3}({(1+{x)^2)}^2}dx=A.int dfrac ({x)^3}({(1+{x)^2)}^2}dx=B.int df
int dfrac ({e)^x}({2)^x}dx;