Question

y=1/x^2 Найти производную

Answer 1

$y'=(\frac{1}{x^2})'=(x^{-2})'=-2 \cdot x^{-3}=-\frac{2}{x^3}$

Answer 2

$y=1/x^2$
$y`=(x ^{-2})`=-2x ^{-2-1} =-2x ^{-3}=-2/x^3$