求:y=[sin²x·sin(x²)]导数
问题描述:
求:y=[sin²x·sin(x²)]导数
答
y'=2sinxcosxsin(x²)+2xsin²xcos(x²)
答
y = sin²x * sin(x²)
dy/dx = sin(x²) * 2sinxcosx + sin²x * cos(x²) * 2x
= 2xsin²xcos(x²) + sin(x²)sin(2x)