Question

como que faz 5^-1/2? como que faz?

Answer 1

$5^{-\frac{1}{2}}=\\\\(\frac{1}{5})^{+\frac{1}{2}}=\\\\\frac{1}{5^{\frac{1}{2}}}=\\\\\frac{1}{\sqrt[2]{5}}=\\\\\frac{1}{\sqrt{5}}\times\frac{\sqrt{5}}{\sqrt{5}}=\\\\\boxed{\frac{\sqrt{5}}{5}}$