计算：int dfrac (x)({x)^2-x-2}dx

int dfrac (5x-1)({x)^2-x-2}dx= (.A.int dfrac (5x-1)({x)^2-x-2}dx= (B.int dfrac (

(35) int dfrac (x)({x)^2-x-2}dx;

求int dfrac (1)({x)^2-x-2}dx求

函数(x)=dfrac (1)({x)^2-x-2} 的麦克劳林展开式为(x)=dfrac (1)({x)^2-x-2}(x)=dfrac (1)({x)^2-

int dfrac ({x)^3}({(1+{x)^2)}^2}dx=A.int dfrac ({x)^3}({(1+{x)^2)}^2}dx=B.int df

计算积分(int )_(dfrac {1)(2)}^dfrac (3{2)}dfrac (dx)(sqrt {|x-{x)^2|}}.(本题满分6分)计算积分.

int dfrac ({e)^x}({2)^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

不定积分int dfrac (dx)(4{x)^2-9}=-|||-__.int dfrac (dx)(4{x)^2-9}=-|||-__int dfrac (

[题目]计算 (int )_(1)^+infty dfrac (arctan x)({x)^2}dx