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Using identities, evaluate. 71² ?????????????????????????????????????

Using identities, evaluate. 
71² ?????????????????????????????????????

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5875 Points
2 months ago
Dear Student

71^2= (70+1)^2
= 70^2+ 140 + 1^2
= 4900 + 140 +1
= 5041

Thanks

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