(4) (int )_(1)^4dfrac (ln x)(sqrt {x)}dx

(8) (int )_(1)^4dfrac (ln x)(sqrt {x)}dx;

(8) (int )_(1)^4dfrac (ln x)(sqrt {x)}dx

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

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

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

[题目] (int )_(2)^4dfrac (1)(x)dx= __

int dfrac (1)(sqrt {x)}ln sqrt (x)dx

(4)int_(1)^4(ln x)/(sqrt(x))dx;(4)$\int_{1}^{4}\frac{\ln x}{\sqrt{x}}dx;$

1.求下列定积分.-|||-(1) (int )_(1)^4dfrac (1)(x+sqrt {x)}dx

int dfrac (1)(sqrt {x)+sqrt [4](x)}dx