Question

найдите производные функций

Answer 1

Ответ:

$13)y' = \frac{ \frac{1}{2} {x}^{ - \frac{1}{2}}(x - 1) - \sqrt{x} }{ {(x - 1)}^{2} } = \frac{ \frac{x - 1}{2 \sqrt{x} } - \sqrt{x} }{ {(x - 1)}^{2} } = \frac{1}{2 \sqrt{x}(x - 1) } - \frac{ \sqrt{x} }{ {(x - 1)}^{2} }$

$15)y' = - {x}^{ - 2} + \frac{1}{2} {(x - 1)}^{ - \frac{1}{2} } = - \frac{1}{ {x}^{2} } + \frac{1}{2 \sqrt{x - 1} }$