Question

calcule as potencias:
a) ( 9/5) -2
b) ( 1/5) -3
c) ( 9/ 5-2)
d) ( -8) -1
e) ( 2/5) -3
f) ( -10) -5

Answer 1

a) ( 9/5)-² = (5/9)² = 5²/9² = 25/81

b) ( 1/5)-³ = (5/1)³ = 5³ = 125

c) ( 9/ 5-²) = 9. 5² = 9. 25= 225

d) ( -8)-¹ = (-1/8)¹ = -1/8

e) ( 2/5)-³ = (5/2)³ = 5³/2³ = 125/8

f) ( -10)^-5 = (-1/10)^5 = -1/10^5