计算定积分(int )_(1)^edfrac (ln x)(x)dx.

计算定积分(int )_(1)^edfrac (2+ln x)(x)dx.计算定积分.

(int )_(1)^edfrac (ln x)(x)dx..

14、计算定积分int_(1)^e(ln^2x)/(x)dx.14、计算定积分$\int_{1}^{e}\frac{\ln^{2}x}{x}dx$.

积分 (int )_(-1)^edfrac (1)(x)dx=ln e-ln |-1|=1 (int )_(-1)^edfrac (1)(x)dx=ln e-l

2.计算定积分int_(0)^1ln(1+sqrt(x))dx.2.计算定积分$\int_{0}^{1}\ln(1+\sqrt{x})dx$.

计算定积分 (int )_(0)^1(2x+1)dx.

(13)(int )_(1)^edfrac (ln 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：.

计算定积分(int )_(0)^1dfrac (x)(x+1)sqrt (1-{x)^2}dx.计算定积分.