Question

2/3^-2 -1/2^-1 + 1/4^-2​ calcule expressão ​

Answer 1

Explicação passo-a-passo:

(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+56/4=

65/4