Find the value of 2ⁿ+2ⁿ⁻¹/2ⁿ⁺¹
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At first , your question is 2^n +2^n-1/2^n+1
As we know n =0 so, =4(2+2)0 /2×0+1
=4/2+1
=4/3
as we know that just reverse then it will be perfect because small one always comes before the big one in arrangements.
so, answer is 3/4.
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