Question 1049568
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Simplify:
(2^2n - 1)/(2^n+1 - 2)
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I assume that the original formula is


(2^2n - 1)/(2^n+1 - 2) = {{{(2^(2n) - 1)/(2^(n+1) - 2)}}} = {{{((2^n-1)*(2^n+1))/(2*(2^n-1))}}} = {{{((cross(2^n-1))*(2^n+1))/(2*(cross(2^n-1)))}}} = {{{(2^n+1)/2}}}.
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