using identities,evalute. 71square
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hii!!
here's ur answer...
in this we can use the first identity, which is (a+b)²
71²
= (70+1)²
= 70²+2(70×1)+1²
= 4900+(2×71)+1
= 4900+142+1
= 5043
hope this helps..!
here's ur answer...
in this we can use the first identity, which is (a+b)²
71²
= (70+1)²
= 70²+2(70×1)+1²
= 4900+(2×71)+1
= 4900+142+1
= 5043
hope this helps..!
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