int cos ln xdx.20. $\int \cos \ln xdx$.
(15)int (x)^3(ln )^2xdx;
^3ln xdx=( )A ^3ln xdx=B ^3ln xdx=C^3ln xdx=D ^3ln xdx=()ABCD
简答题(10.0分) 1.int ln xdx简答题(10.0分) 1.$\int ln xdx$
求不定积分 int dfrac (1)({x)^3}ln xdx
int t(e)^-2tdt.-|||-.int (ln )^2xdx-|||-.int xsin xcos xdx.-|||-15. int (x)^2(co
(int )_(0)^+infty x(2)^-xdx=( )(int )_(0)^+infty x(2)^-xdx=( )(int )_(0)^+inft
int ((x)^2-1)sin 2xdx.-|||-18. int dfrac ({ln )^3x}({x)^2}dx.
A int cos xdx=sin x+CB int cos xdx=sin x+CC int cos xdx=sin x+CD int cos xdx=sin
定积分(int )_(0)^3(2)^xdx=( ).A.(int )_(0)^3(2)^xdx=B.(int )_(0)^3(2)^xdx=C.(in