21.求定积分 (int )_(0)^1(e)^sqrt (x)dx 。

求定积分(int )_(0)^4ln (sqrt (x)+1)dx.求定积分.

定积分 int_(0)^1 (1)/(1 + sqrt(x)) dx = ( )A. $1 - 2\ln 2$B. $2 - \ln 2$C. $2 - 2\l

求定积分(int )_(1)^sqrt (3)dfrac (1)({x)^2sqrt (1+{x)^2}}dx求定积分

定积分(int )_(0)^1sqrt (2x-{x)^2}dx=( )(int )_(0)^1sqrt (2x-{x)^2}dx=( )(int )_(0

求定积分 int_(1)^e (ln x)/(x)dx ( )。A. 1B. $\frac{1}{2}$C. $-\frac{1}{2}$D. -1

求定积分int_(-1)^1 ((xrm{dx))/(sqrt(5-4x)) }求定积分$\int_{-1}^{1} {\frac{x\rm{dx}}{\sqr

15.求不定积分 int sqrt ({e)^x-1}dx

求下列定积分:-|||-(10) (int )_(1)^sqrt (3)dfrac (dx)({x)^2sqrt (1+{x)^2}}

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

定积分(int )_(0)^4dfrac (dx)(1+sqrt {x)}的值是（ ）(int )_(0)^4dfrac (dx)(1+sqrt {x)}(i