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 (e^arctan x + 2x ln (1 + x^2))/(1 + x^2) dx.求不定积分 $\int \frac{e^{\arct
求不定积分int(1)/((1+sqrt[3](x))sqrt(x))dx.21. 求不定积分$\int\frac{1}{(1+\sqrt[3]{x})\sqr
求下列不定积分:-|||-int (e)^sqrt (3x+9)dx.
求不定积分int dfrac (x{e)^3x+(x)^3ln x}(x)dx.求不定积分
求不定积分int dfrac (arctan sqrt {x)}(sqrt {x)(1+x)}dx求不定积分
求下列不定积分:int dfrac (2x+3)({x)^2+3x-10}dx.求下列不定积分:.
(2025 浙江)求不定积分int(x^3)/(sqrt[3](1-2x^2) )dx.(2025 浙江)求不定积分$\int\frac{x^{3}}{\sqr
(4)计算不定积分 int cos sqrt (x)dx.
求不定积分int (x)^2(ln x-dfrac (1)(1+{x)^2})dx.求不定积分.