13.求不定积分 int dfrac (1)(1-sqrt {x+1)}dx.

13.求不定积分 int dfrac (1)(sqrt {x(1-x))}dx

求不定积分int(1)/((1+sqrt[3](x))sqrt(x))dx.21. 求不定积分$\int\frac{1}{(1+\sqrt[3]{x})\sqr

求下列不定积分:-|||-(1) int dfrac (1)(5x-3)dx ;-|||-(3) int dfrac (1)(sqrt {x+1)+sqrt (

不定积分int dfrac (1)(1+sqrt {x)}dx= __ 。（） int dfrac (1)(1+sqrt {x)}dx= __ 。

4.求不定积分int(x+1)/((x-1)(x^2)+1)^(2)dx.4.求不定积分$\int\frac{x+1}{(x-1)(x^{2}+1)^{2}}d

求不定积分int dfrac (arctan sqrt {x)}(sqrt {x)(1+x)}dx求不定积分

求不定积分int (x)^2(ln x-dfrac (1)(1+{x)^2})dx.求不定积分.

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

求不定积分int dfrac (1)(2x)sqrt (ln x)dx=（）.int dfrac (1)(2x)sqrt (ln x)dx=int dfrac

4、计算不定积分int(arcsinsqrt(x))/(sqrt(1-x))dx.4、计算不定积分$\int\frac{\arcsin\sqrt{x}}{\sq