Question

simplifique a expressão
2^n+1 - 2^n-2
-------------------------
2^n​

Answer 1

Resposta:

2^n+1-2^n-2/2^n

2^n.2^1-2^n.2^-2/2^n

2^n(2-2^-2)/2^n

2-1/4= 8-1/4 =7/4