Question

Calcule expressão
(2/3) elevado -2 - (1/2) elevado -1 + (-1/4 ) elevado -2

Answer 1

(2/3)-² - (1/2)-¹ + (-1/4)-²

(3/2)² - (2/1)¹ + (-4/1)²

9/4 - 2 + 16

9/4 + 14

9/4 + 56/4

65/4