Question

2^n + 2^n-1 / 2^n+1 - 2^n​

Answer 1

Step-by-step explanation:

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

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

By the formula

a^m/a^n = a^m-n

= 2^( n-1) - (n+1)

= 2^ n-1-n-1

= 2^ -2

= 4^-1

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Answer 2

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