Question

Calcule o valor das expressões abaixo.

A) 3-¹ + (3/2)-¹
B) 8-¹ . (2/3)²
C)2-¹ + 2°
D)(-2/3)² - (-2/3)-²

Answer 1

Ola carinha boa noite !



A) 3^-1 + ( 3/2 ) ^-1

1/3 + 2/3 = 1


B) 8^-1 × ( 2/3 ) ^ 2

1/8 × 4/9 = 4/72


C) 2^-1 + 2^0

1/2 + 1 = 3/2


D) (-2/3)^2 - ( -2/3 ) ^-2

4/9 - 9/4 = -65/36


Bons estudos :)