求不定积分int dfrac (1)(2x)sqrt (ln x)dx=（）.int dfrac (1)(2x)sqrt (ln x)dx=int dfrac (1)(2x)sqrt (ln x)dx=int dfrac (1)(2x)sqrt (ln x)dx=int dfrac (1)(2x)sqrt (ln x)dx=

int dfrac (1)(x{ln )^2x}dx

int dfrac (1)(sqrt {x)}ln sqrt (x)dx

(int )_(1)^2dfrac (dx)(x(1+sqrt {2x))}=( )A.(int )_(1)^2dfrac (dx)(x(1+sqrt {2x

(int )_(1)^(e^2)dfrac (ln x)(sqrt {x)}dx= __

求int dfrac ({ln )^2sqrt (x)}(sqrt {x)}dx求

40) int dfrac (dx)(1+sqrt {2x)} ,

(40 ) int dfrac (dx)(1+sqrt {2x)};

不定积分int dfrac (1)(1+sqrt {x)}dx= __ 。（） int dfrac (1)(1+sqrt {x)}dx= __ 。

(int )_(e)^+infty dfrac (dx)(x{ln )^2x}= __

求不定积分int [ ln (ln x)+dfrac (1)(ln x)] dx-|||-__。求不定积分。