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For a certain function f(n), the identity

(2n)/n - (2n)/(n + 1) = f(n) (2n)/n

for all nonnegative integers n.  Find f(n).

 Dec 30, 2022
 #1
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f(n) = 1/(n^2 + 4n + 5)

 Dec 31, 2022

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