计算不定积分int (x+cos x)'dx=（）A int (x+cos x)'dx=B int (x+cos x)'dx= C int (x+cos x)'dx= D int (x+cos x)'dx=

求int dfrac (cos x)(sin x+cos x)dx.求.

int dfrac (sin x-cos x)(sin x+cos x)dx==

int dfrac (sin x+cos x)(sqrt [3]{sin x-cos x)}dx

(11) int dfrac (sin x+cos x)(sqrt [3]{sin x-cos x)}dx

14.int(sin x+3cos x)/(2sin x+cos x)dx=____14.$\int\frac{\sin x+3\cos x}{2\sin x+

2、设f`(x)为连续函数,则 int (sin )^2xf(cos x)dx-int cos xf(cos x)dx=

函数(x)=(e)^x+cos x在区间 (x)=(e)^x+cos x上的所有原函数为 ( ).A (x)=(e)^x+cos xB (x)=(e)^x+co

求不定积分int(x)/(1+cos x)dx.19.（5.0分）求不定积分$\int\frac{x}{1+\cos x}dx$.

(4)计算不定积分 int cos sqrt (x)dx.

计算不定积分int dfrac (2cos dfrac {1)(x)}({x)^2}dx计算不定积分