Question

Найдите производную функции:
y=сosx/x
y=sinx/x

Answer 1

$y = \frac{cosx}{x}$
$y' = \frac{(cosx)'*x-(x)'(cosx)}{x^{2}} = \frac{-xsinx-cosx}{x^{2}}$
$Y = \frac{sinx}{x}$
$Y' = \frac{(sinx)'*x-(x)'(sinx)}{x^2} = \frac{xcosx-sinx}{x^2}$