2.计算下列定积分.-|||-(3) (int )_(-2)^2((x)^2sqrt (4-{x)^2}+x(cos )^5x)dx.

[题目]-|||-定积分 (int )_(-2)^2sqrt (4-{x)^2}dx= __

4.计算下列定积分:-|||-(3) (int )_(0)^a(x)^2sqrt ({a)^2-(x)^2}dx(agt 0) :

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

(2) (int )_(-2)^2((x)^3(cos )^5x+sqrt (4-{x)^2})dx=

计算下列积分：(int )_(0)^sqrt (2)sqrt (2-{x)^2}dx.计算下列积分：.

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

计算定积分 (∫)_(0)^2sqrt(4-(x)^2)dx= ____ ．计算定积分${∫}_{0}^{2}$$\sqrt{4-{x}^{2}}$dx= __

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

计算下列定积分：(int )_(0)^sqrt (2)sqrt (2-{x)^2}dx；计算下列定积分：；

2.计算下列不定积分：(9)int dfrac (x{e)^arctan x}({(1+{x)^2)}^dfrac (3{2)}}dx.2.计算下列不定积分：(