Question

помогите решить производную

$f(x) = 2x + \frac{1}{x^{2} } - 5$

Answer 1

Производная f`(x)=2-2/x^3

Answer 2

$f(x) = 2x + \frac{1}{ {x}^{2} } - 5 = 2x + {x}^{ - 2} - 5\\ {f}^{l} (x) = 2 - 2 {x}^{ - 3}$