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Question Number 194373 by MM42 last updated on 05/Jul/23
Show     Σ_(i=1) ^n ((1/(2i−1))− (1/(2i)))=Σ_(i=1) ^n  (1/(n+i))
$${Show}\:\:\: \\ $$$$\underset{{i}=\mathrm{1}} {\overset{{n}} {\sum}}\left(\frac{\mathrm{1}}{\mathrm{2}{i}−\mathrm{1}}−\:\frac{\mathrm{1}}{\mathrm{2}{i}}\right)=\underset{{i}=\mathrm{1}} {\overset{{n}} {\sum}}\:\frac{\mathrm{1}}{{n}+{i}}\: \\ $$$$ \\ $$

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