Question

найдите производную
$y = {x}^{3} + {2x}^{5} - \frac{2}{x}$

Answer 1

$y= x^{3} +2 x^{5}- \frac{2}{x} = x^{3} +2 x^{5}-2 x^{-1} \\\\y'=( x^{3})'+2( x^{5})'-2( x^{-1})'}=3 x^{2} +10 x^{4}+2 x^{-2}=3 x^{2} +10 x^{4}+ \frac{2}{ x^{2} }$