Question

СРОЧНО НУЖЕН РЕШЕНИЕ!!!!

Answer 1

$frac{ sqrt{xy} + x}{ sqrt{xy} + y } = frac{( sqrt{xy} + x)( sqrt{xy} - y)}{( sqrt{xy} + y) sqrt{xy} - y) } = frac{xy - y sqrt{xy} + x sqrt{xy} - xy }{xy - {y}^{2} } = \ = frac{ sqrt{xy}(x - y) }{y(x - y)} = frac{ sqrt{xy} }{y}$

Answer 2

$dfrac{sqrt{xy}+x}{sqrt{xy}+y}=dfrac{sqrt{x}cdot (sqrt{y}+sqrt{x})}{sqrt{y}cdot (sqrt{x}+sqrt{y})}=dfrac{sqrt{x}}{sqrt{y}}=dfrac{sqrt{x}cdot sqrt{y}}{sqrt{y}cdot sqrt{y}}=dfrac{sqrt{xy}}{y}$