求int dfrac (sqrt {{x)^2-9}}(x)dx.

int dfrac (sqrt {{x)^2-9}}(x)dx

(2) int dfrac (sqrt {{x)^2-9}}(x)dx

不定积分int dfrac (dx)(4{x)^2-9}=-|||-__.int dfrac (dx)(4{x)^2-9}=-|||-__int dfrac (

int dfrac (arcsin sqrt {x)}(sqrt {x)}dx..

例 16 求 int dfrac (x+2)(sqrt [3]{2x+1)}dx.

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

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

.int dfrac (sqrt {1+{x)^2}+sqrt (1-{x)^2}}(sqrt {1-{x)^4}}dx.

求 int dfrac (sqrt [3]{x)}(x(sqrt {x)+sqrt [3](x))}dx。。

求int dfrac (cos x)(sin x+cos x)dx.求.