Question

Cat inseamna ( $\frac{-1}{2})^{-1}$ ? Spuneti-mi va rog!

Answer 1

$(\frac{-1}{2} )^{-1}= (\frac{2}{-1} )^{1}=(-2)^1=-2\\(\frac{-1}{2} )^{-2}= (\frac{2}{-1} )^{2}=(-2)^2=2^2=4\\ Observatie: (\frac{a}{b} )^{-n}= (\frac{b}{a} )^{n}$Scrie răspunsul tău aici