Question

Resolva :a) 2 elevado -5b) 5elevado -3c) (1/2) elevado -2d) (2/3) elevado -3

Answer 1

a) 2^(-5)
( 1/2 )^5
1/32 = 0,03125

b) 5-³
( 1/5 )³
1/125 = 0,008

c) ( 1/2 )-²
( 2 )²
4

d) ( 2/3 )-³
( 3/2 )³
27/8 = 3,375

Answer 2

$a) {2}^{ - 5} = \frac{1}{ {5}^{2} } = \boxed{ \frac{1}{32} }$

$b) {5}^{ - 3} = \frac{1}{ {5}^{3} } = \boxed{ \frac{1}{125} }$

$c) {( \frac{1}{2} )}^{ - 2} = {2}^{2} = \boxed{4}$

$d) {( \frac{2}{3} )}^{ - 3} = ( \frac{3}{2} ) ^{3} = \boxed{ \frac{27}{8} }$