计算下列积分:(3) int (ln )^2(x+sqrt (1+{x)^2})dx ;

求下列不定积分int ln (x+sqrt (1+{x)^2})dx求下列不定积分

.计算下列定积分:-|||-(10) (int )_(1)^sqrt (3)dfrac (dx)({x)^2sqrt (1+{x)^2}}

1.计算下列定积分:-|||-(10) (int )_(1)^sqrt (3)dfrac (dx)({x)^2sqrt (1+{x)^2}};

求下列不定积分：int ln (sqrt (1+{x)^2}-x)dx。求下列不定积分：。

设 gt 0, 求 (int )_(-a)^asqrt ({a)^2-(x)^2}ln dfrac (x+sqrt {1+{x)^2}}(3)dx,

设 gt 0, 则 =(int )_(-a)^asqrt ({a)^2-(x)^2}ln dfrac (x+sqrt {1+{x)^2}}(3)dx= __

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

(5)int ln^2(x+sqrt(1+x^2))dx;(5)$\int ln^{2}(x+\sqrt{1+x^{2}})dx;$

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

(2) (x)=ln (x+sqrt (1+{x)^2});