Question

помогите пожалуйста решить!!!!!​

Answer 1

Ответ:

[{x/(y-x)}^(-2) - {(x+y)^2 - 4xy}/{x^2 -xy}} ^2 * x^4/(x^2y^2-y^4) => (1) x/(y-x)}^(-2) = (x+y)^2 - 4xy = = x^2 + 2xy + y^2 - 4xy = x^2 - 2xy + y^2 = (x-y)^2 (3) (x-y... [(y-x)/x]^2 = (y-x)^2 / x^2 = (x-y)^2 / x^2 2)