根据复合函数微分法则y-sin(2x+1),求dy
问题描述:
根据复合函数微分法则y-sin(2x+1),求dy
答
y=sin(2x+1)
dy=dsin(2x+1)
=cos(2x+1)d(2x+1)
=2cos(2x+1)dx