Question

gente me ajudem por favor!​

Answer 1

Explicação passo-a-passo:

a= (2/3)-¹= (3/2)¹= 3/2

b= - 5/2

a) 3/2 - (-5/2)= 3/2 +5/2= 8/2= 4

b) 3/2 : (-5/2) = 3/2 × (-2/5)= - 6/10 = - 3/5

c) 3/2 .(-5/2)²= 3/2 .(+25/4)= 75/8

d) ( 3/2 + 5/2)²= (8/2)²= 4²= 16