.A.对B.错
.A.对B.错
int dfrac (sin x-cos x)(sin x+cos x)dx==
微分方程 cos x sin y (dy)/(dx) = sin x cos y 通解为() A)cos y = C cos x B)s
int dfrac (sin x+cos x)(sqrt [3]{sin x-cos x)}dx
A int cos xdx=sin x+CB int cos xdx=sin x+CC int cos xdx=sin x+CD int cos xdx=sin
(11) int dfrac (sin x+cos x)(sqrt [3]{sin x-cos x)}dx
14.int(sin x+3cos x)/(2sin x+cos x)dx=____14.$\int\frac{\sin x+3\cos x}{2\sin x+
int (cos x-sin x),(rm dx)=( )A. -sinx+cosx+CB. sinx-cosx+CC. -sinx-cosx+CD. si
求int dfrac (cos x)(sin x+cos x)dx.求.
int dfrac (cos 2x)(cos x+sin x)dx
int dfrac (sin x)({cos )^3x}dx=______.______.