[题目]计算定积分 (int )_(0)^1dfrac (1)(1+sqrt {x)}dx.

计算定积分(int )_(0)^1dfrac (x)(x+1)sqrt (1-{x)^2}dx.计算定积分.

[题目]计算定积分: (int )_(4)^9sqrt (x)(1+sqrt (x))dx.

【题目】-|||-(int )_(0)^4dfrac (1)(1+sqrt {x)}dx.

2.计算定积分int_(0)^1ln(1+sqrt(x))dx.2.计算定积分$\int_{0}^{1}\ln(1+\sqrt{x})dx$.

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

[题目]计算不定积分 int ln (1+sqrt (dfrac {1+x)(x)})dx(xgt 0).

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

4.9 计算下列定积分:-|||-(6) (int )_(dfrac {3)(4)}^1dfrac (1)(sqrt {1-x)-1}dx.

【题目】-|||-计算下列定积分:-|||-(12) (int )_(1)^4dfrac (dx)(1+sqrt {x)};

定积分(int )_(0)^4dfrac (dx)(1+sqrt {x)}的值是（ ）(int )_(0)^4dfrac (dx)(1+sqrt {x)}(i