Question

Упростить выражение:

Answer 1

$(frac{y^2}{x(x^2-y^2)}+frac{1}{x+y}^{(x}):(frac{x-y}{x(x+y)}^{(y}-frac{x}{y(y+x)}^{(x})=\\(frac{y^2}{x(x+y)(x-y)}+frac{x}{x(x+y)}^{(x-y}):(frac{xy-y^2-x^2}{xy(x+y)})=\\(frac{y^2+x^2-xy}{x(x+y)(x-y)})*(frac{xy(x+y)}{-(y^2+x^2-xy)})=\\-(frac{y}{x-y})\\Otvet:frac{y}{y-x}.$