求不定积分int dfrac (1)(xsqrt {{x)^2-1}}dx。

不定积分 int dfrac ({x)^2-1}(sqrt {xsqrt {x)}}dx=

2.求下列不定积分:-|||-(1) int dfrac (dx)({x)^2};-|||-(2) int xsqrt (x)dx; 2.求下列不定积

求(int )_(1)^+infty dfrac (dx)(xsqrt {2{x)^2-1}}=求

[题目]求不定积分: int dfrac (1)(xln x)dx,

求下列不定积分。-|||-int dfrac (1)(5-2x)dx

求下列不定积分int dfrac (1)({x)^3}(e)^dfrac (1{x)}dx求下列不定积分

求下列不定积分:-|||-(2) int dfrac (1)({x)^2+2x+2}dx;

int dfrac (dx)(xsqrt {{x)^2-1}}=____________________________

求不定积分int (x)^2(ln x-dfrac (1)(1+{x)^2})dx.求不定积分.

求下列不定积分:-|||-int dfrac (1+2{x)^2}({x)^2(1+(x)^2)}dx ;