14、计算定积分int_(1)^e(ln^2x)/(x)dx.14、计算定积分$\int_{1}^{e}\frac{\ln^{2}x}{x}dx$.
计算定积分(int )_(1)^edfrac (ln x)(x)dx.计算定积分
2.计算定积分int_(0)^1ln(1+sqrt(x))dx.2.计算定积分$\int_{0}^{1}\ln(1+\sqrt{x})dx$.
15.计算定积分I=int_(1)^3|x-2|dx.15.计算定积分$I=\int_{1}^{3}|x-2|dx$.
计算定积分 (int )_(0)^1(2x+1)dx.
(14)int(e^x)/(1+e^x)dx;(14)$\int\frac{e^{x}}{1+e^{x}}dx;$
计算定积分(int )_(1)^edfrac (2+ln x)(x)dx.计算定积分.
计算定积分(int )_(0)^1dfrac (x)(x+1)sqrt (1-{x)^2}dx.计算定积分.
求定积分 int_(1)^e (ln x)/(x)dx ( )。A. 1B. $\frac{1}{2}$C. $-\frac{1}{2}$D. -1
积分 int_(0)^1 xe^2x , dx = ____.A. $\frac{e^2+1}{4}$B. $1$C. $\frac{e^2+1}{2}$D.