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a_n is a sequence such that \(a_{n+1}+(-1)^n a_n=2n-1\)

find \(\displaystyle \sum_{k=1}^{60} a_k\)

 Jun 20, 2020
 #1
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We need at least one starting value! Or else we can't do it :|

 Jun 20, 2020

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