[题目]计算定积分 (int )_(0)^1dfrac (1)(1+sqrt {x)}dx.
14、计算定积分int_(1)^e(ln^2x)/(x)dx.14、计算定积分$\int_{1}^{e}\frac{\ln^{2}x}{x}dx$.
[题目]计算定积分: (int )_(4)^9sqrt (x)(1+sqrt (x))dx.
计算下列定积分：(int )_(0)^1ln (x+1)dx.计算下列定积分：.
17.计算定积分int_(0)^sqrt(2)(x^2)/(sqrt(4-x^2)) dx.17.计算定积分$\int_{0}^{\sqrt{2}}\frac{
计算定积分(int )_(1)^edfrac (ln x)(x)dx.计算定积分
计算定积分(int )_(1)^edfrac (2+ln x)(x)dx.计算定积分.
计算不定积分int ln (1+sqrt (x))dx计算不定积分
int_(0)^2(1)/(1+sqrt[3](x))dx;$\int_{0}^{2}\frac{1}{1+\sqrt[3]{x}}dx;$
计算定积分(int )_(0)^1dfrac (x)(x+1)sqrt (1-{x)^2}dx.计算定积分.