求下列不定积分(其中a、b、w、φ均为常数):-|||-(41) int dfrac (dx)(1+sqrt {1-{x)^2}}-|||-(42) int dfrac (dx)(x+sqrt {1-{x)^2}}-|||-(43) int dfrac (x-1)({x)^2+2x+3}dx;-|||-(44) int dfrac ({x)^3+1}({({x)^2+1)}^2}dx.

求下列不定积分(其中a、b、w、φ均为常数):-|||-(41) int dfrac (dx)(1+sqrt {1-{x)^2}};-|||-(42) int

求下列不定积分(其中a、b、b、φ均为常数):-|||-(41) int dfrac (dx)(1+sqrt {1-{x)^2}};-|||-(42) int

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

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

int dfrac (dx)(x+sqrt {1-{x)^2}}..

int dfrac (dx)(x+sqrt {1-{x)^2}}

(1) int dfrac (dx)(1+sqrt {1-{x)^2}} ,

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

(6) int dfrac (dx)(1+sqrt {1-{x)^2}} ;

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