如下哪一个是y=sinx+cos2x+sin3x的原函数:
A、-cosx+(1/2)sin2x-(1/3)cos3x;
B、cosx+sin2x+cos3x;
C、-cosx+sin2x-cos3x;
D、cosx-(1/2)sin2x+(1/3)cos3x
发布时间:2025-05-24 14:47:45
A、-cosx+(1/2)sin2x-(1/3)cos3x;
B、cosx+sin2x+cos3x;
C、-cosx+sin2x-cos3x;
D、cosx-(1/2)sin2x+(1/3)cos3x