已知:【(x²+y²)-(x-y)²+2y(x-y)】/4y=1,求4x/4x²-y²-1/2x+y
问题描述:
已知:【(x²+y²)-(x-y)²+2y(x-y)】/4y=1,求4x/4x²-y²-1/2x+y
答
【(x²+y²)-(x-y)²+2y(x-y)】/4y=1可化简为【x²+y²-x²-y²+2xy+2y(x-y)】/4y=1也即【2y*x+2y(x-y)】/4y=1 也即2y(2x-y)/4y=1即y=2x-24x/4x²-y²-1/2x+y=1/x -y...