Question Number 143018 by aupo14 last updated on 08/Jun/21
Answered by Dwaipayan Shikari last updated on 08/Jun/21
$$\left(−\mathrm{1}\right)^{{n}+\mathrm{1}} \:\:\:\:\:\:\:\:{n}\:{starts}\:{from}\:\mathrm{1} \\ $$
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Question Number 143018 by aupo14 last updated on 08/Jun/21 | ||
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Answered by Dwaipayan Shikari last updated on 08/Jun/21 | ||
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$$\left(−\mathrm{1}\right)^{{n}+\mathrm{1}} \:\:\:\:\:\:\:\:{n}\:{starts}\:{from}\:\mathrm{1} \\ $$ | ||