Question

$frac{3}{ x^{7} }$ найдите первообразную

Answer 1

$f(x)= frac{3}{x^7}=3x^{-7}$
$F(x)= intlimits {f(x)} , dx = intlimits {3x^{-7} } , dx =3* frac{x^{-7+1}}{-7+1}+C = -frac{1}{2x^6} +C$