- #1
alyafey22
Gold Member
MHB
- 1,561
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Prove the following
where we define
\(\displaystyle \sum_{k=1}^n \frac{H_k}{k} = \frac{H_n^2+H^{(2)}_n}{2}\)
where we define
\(\displaystyle H^{(k)}_n = \sum_{j=1}^n \frac{1}{j^k} \,\,\, ; \,\,\, H^2_n = \left( \sum_{j=1}^n \frac{1}{j}\right)^2 \)