Math, asked by pradeepkumar2041979, 11 months ago

Using identities evaluate
a) (1.1 +0.9b)²

Answers

Answered by skrishna1012

2

identity - (a+b)²= a² + b² + 2ab

(1.1+0.9b)²= (1.1)² + (0.9b)² + 2(1.1)(0.9b)

= 1.21 + 0.81b² + 1.98b

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