Math, asked by randev3reeta, 10 months ago

n 2 +n is an even natural number​

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Answered by Anonymous
4

The induction hypothesis n2+n is even. Hence n2+n=2k for some integer k. We have n2+n+2(n+1)=2k+2(n+1)=2(k+n+1)=2×an integer=even....✌️❤️

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