Math, asked by saklanitarni009, 6 months ago

plz answer fast........ ....

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Answered by rsagnik437

9

We know that n²+1-n²=n+n+1

Thus-----

89²-88²

=>89+88

=>177

Check:-

89²-88²

7921-7744

=>177

Thus,the answer comes correct using above formula.

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