.
.
求int dfrac (sqrt {{x)^2-9}}(x)dx.求.
.int dfrac (sqrt {1+{x)^2}+sqrt (1-{x)^2}}(sqrt {1-{x)^4}}dx.
)int dfrac (dx)(sqrt {x)+sqrt [4](x)}
int dfrac (dx)(sqrt {x)+sqrt [4](x)}; ;
24.[判断题]分部积分法int sqrt(x)sin sqrt(x)dx=-int xcos sqrt(x)+int cos sqrt(x)dx.A. 对B.
int dfrac (1)(sqrt {x)}ln sqrt (x)dx
int dfrac (1)(sqrt {x)+sqrt [4](x)}dx
求 int dfrac (sqrt [3]{x)}(x(sqrt {x)+sqrt [3](x))}dx。。
(7) int dfrac ({10)^2arcsin x}(sqrt {1-{x)^2}}dx;
(6) int dfrac ({10)^2arcsin x}(sqrt {1-{x)^2}}dx