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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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