PutnamSuperchallengeIntegrals I: Feynman's Trick ShareIntegrals I: Feynman's Trick · Superchallenge problemCompute ∑n=1∞Fn2n\displaystyle\sum_{n=1}^\infty \frac{F_n}{2^n}n=1∑∞2nFn, where F1=F2=1F_1 = F_2 = 1F1=F2=1 and Fn+2=Fn+1+FnF_{n+2} = F_{n+1} + F_nFn+2=Fn+1+Fn.Check Show answer Walk through it step by step Practice more like this Review this concept