(y/x^2)^2/(-y^2/4x)^2
问题描述:
(y/x^2)^2/(-y^2/4x)^2
答
=(y²/x^4)×(16x²/y^4)
=16/x²y²
(y/x^2)^2/(-y^2/4x)^2
=(y²/x^4)×(16x²/y^4)
=16/x²y²