Question

помогите!!
$intlimits^4_2 {dx/x^2}$

Answer 1

$intlimits^4_2 frac{dx }{x^2} =- frac{1}{x} | limits_2^4=-(frac{1}{4}-frac{1}{2})=$

$=frac{1}{2}-frac{1}{4}=frac{1}{4}$