y=ln(x^2+1),求dy
问题描述:
y=ln(x^2+1),求dy
答
dy=1/(x²+1) d(x²+1)
=2xdx/(x²+1)
y=ln(x^2+1),求dy
dy=1/(x²+1) d(x²+1)
=2xdx/(x²+1)