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Question: Finding the general formula for the sequence defined by f(1) = 15 and f(n+1) = f(n)  + sqrt(2*f(n+1)-f(n))

Question:Finding the general formula for the sequence defined by f(1) = 15 and f(n+1) = f(n)  + sqrt(2*f(n+1)-f(n))

minhthien2016 370 Maple
November 24 2023
0

My code
restart;
reqn:=f(n+1) = f(n)  + sqrt(2*f(n+1)-f(n)):
rsolve({reqn, f(1) = 15},f(n));
I can not get the answer. How can I get the answer?
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