Question

Por que (4 - 5)^-2?
resoluçao por favor :)

Answer 1

(4-5)^-2
(-1)^-2
1/-1²

1/1
1

Entao a resposta e 1

Answer 2

$(4-5)^{-2}=\\\\(-1)^{-2}=\\\\\left(\frac{1}{-1}\right)^2=\\\\(-1)^2=\\\\\boxed{1}$