Question

"Calcule as potências A) (-1/8)²= B) (+1/8)²= C) (-5/8)²= Urgente

Answer 1

$A)\ \left(\dfrac{-1}{8}\right)^2\\\\\\ =\dfrac{-1^2}{8^2}\\\\\\ =\dfrac{(-1)\times(-1)}{8\times8}\\\\\\ \boxed{=\dfrac{1}{64}}\\\\\\\\ B)\ \left(\dfrac{+1}{8}\right)^2\\\\\\ =\dfrac{+1^2}{8^2}\\\\\\ =\dfrac{(+1)\times(+1)}{8\times8}\\\\\\ \boxed{=\dfrac{1}{64}}\\\\\\\\ C)\ \left(\dfrac{-5}{8}\right)^2\\\\\\ =\dfrac{-5^2}{8^2}\\\\\\ =\dfrac{(-5)\times(-5)}{8\times8}\\\\\\ \boxed{=\dfrac{25}{64}}$

Bons estudos!

Answer 2

A) (-1/8)²= B)(+1/8)² = C)(-5/8)²= 
A)(1/64)= B)(1/64)= C) (25/64)