已知y=(x²)'+lnx,求dy
问题描述:
已知y=(x²)'+lnx,求dy
答
y=(x²)'+lnx = 2x+lnx
dy=(2+1/x)dx
已知y=(x²)'+lnx,求dy
y=(x²)'+lnx = 2x+lnx
dy=(2+1/x)dx