(8)(int )_(1)^2sqrt (2x-{x)^2}dx=__________________.

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

(8) (int )_(0)^1(x)^2sqrt (1-{x)^2}dx :

(int )_(1)^sqrt (3)dfrac (dx)({x)^2sqrt (1+{x)^2}};

(16) (int )_(1)^sqrt (3)dfrac (dx)({x)^2sqrt (1+{x)^2}};

(9) int dfrac (1)({x)^2sqrt (1+{x)^2}}dx

(1) (int )_(0)^a(x)^2sqrt ({a)^2-(x)^2}dx(agt 0);

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

13.计算int x^2sqrt(1+x^2)dx.13.(本题满分10分)计算$\int x^{2}\sqrt{1+x^{2}}dx$.

(int )_(0)^a(x)^2sqrt ({a)^2-(x)^2}dx(agt 0)

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