Question

Как из x^-2/-2 получилось -(1/2x^2)?

Answer 1

$\frac{ {x}^{ - 2} }{ - 2} = \frac{1}{ {x}^{2} } \div - 2 = \frac{1}{ {x}^{2} } \times - \frac{1}{2} = - \frac{1}{2 {x}^{2} }$