Question

calcule as potencias:
b) ( -5) ^ - 2
c) ( - 3) ^ - 4
d) (- 5) ^ - 3
e) ( -1) ^ -4
f) ( - 2/5) ^ -3

Answer 1

b)1/25
c)1/81
d)1/125
e)1
f)125/8

Answer 2

b) (-5) ^ -2 = (-1/5) ^ 2 = 1/25
c) (-3) ^ -4 = (-1/3) ^ 4 = 1/81
d) (-5) ^ -3  = (-1/5) ^ 3 =  -1/125
e) (-1) ^ -4  = (-1/1) ^ 4 = 1
f) (-2/5) ^ -3 = (-5/2) ^ 3 = -125/8