Question

calcule o valor das potências:
${ - 2}^{ - 2}$


$( - 3) {}^{4}$


$( \frac{3}{4} ) {}^{ - 1}$


$( - 2) {}^{0}$


$( \frac{1}{3} ) { }^{ - 2}$

​

Answer 1

-2^(-2) = -1/2^2 = -1/4

(-3)^4 = 81

(3/4)^-1 = (4/3)^1 = 4/3

(-2)^0 = 1

(1/3)^-2 = (3/1)^2 = 3^2 = 9