Question

Найти интеграл dx/x^2

Answer 1

$intlimits { frac{1}{ x^{2} }} , dx = intlimits { {x^{-2} }} , dx = -1 * x^{-1} = - frac{1}{x}+C$

Answer 2

$int frac{1}{x^2}dx = int x^{-2}dx=frac{x^{-2+1}}{-2+1}+C=-frac{1}{x} + C$