Tuesday, 7 January 2020

real analysis - How do i evaluate this sum sumlimitsinftyn=1frac(1)n+1n2n!?

How do I evaluate this sum:
n=1(1)n+1n2n!



Note: The series converges by the ratio test. I have tried to use this sum:n=1(1)n+1n=ln(2) but I didn't succeed. Might there be others techniques which I don't know?



Thank you for any help

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