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29-01-2022
Mathematics

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Evaluate (4.6)² using (a+b)²=a²+b²+2ab

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ThαtButtєřflíєs ThαtButtєřflíєs

29-01-2022

(4.6)²

= (4+ 0.6)²

Using identity–

(4+ 0.6)²

= 4² + 2× 4 ×0.6 +(0.6)²

=16 + 4.8 + 0.36

= 21.16

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