Question

UTILIZANDO AS PROPRIEDADES DE POTENCIAÇÃO ,CALCULE: 
A= 10²/10³
B= (3/8)-²
C=(1/5)² . (1/5)
D= (5)-³
E=(2/3)² . (2/3)
F= (9)-³

ME AJUDEM POR FAVOR, E COLOCAR CONTA MONTADA, OBRIGADA.

Answer 1

A= 10²/10³ = 10² : 10³ = 10²-³ = 10-¹ = (1/10)¹ = 1/10

B= (3/8)-² = (8/3)² = 8²/3² = 64/9

C=(1/5)² . (1/5) = (1/5)²+¹ = (1/5)³ = 1/125

D= (5)-³ = (1/5)³ = 1/125
E=(2/3)² . (2/3) = (2/3)²+¹ = (2/3)³ = 8/27

F= (9)-³ = (1/9)³ = 1/729