Question

спростіть вираз. срочно!!!( •́ ₒ •̀ )​

Answer 1

Ответ:

$\frac{\sqrt a \sqrt b + \sqrt a (\sqrt a - \sqrt b)}{\sqrt b (\sqrt a - \sqrt b)} * \frac{\sqrt b - \sqrt a}{\sqrt b} = - \frac{\sqrt a \sqrt b + \sqrt a (\sqrt a - \sqrt b)}{\sqrt b (\sqrt b - \sqrt a)} * \frac{\sqrt b - \sqrt a}{\sqrt b} = - \frac{\sqrt a \sqrt b + \sqrt a (\sqrt a - \sqrt b)}{\sqrt b} * \frac{1}{\sqrt b} = - \frac{\sqrt a \sqrt b + \sqrt a (\sqrt a - \sqrt b)}{b} = - \frac{\sqrt a \sqrt b + a - \sqrt a \sqrt b}{b} = - \frac{a}{b}$