Question

6.1 square using identity

Answer 1

6.1 sq. Can be written as (2+3.1)^2

Therefore we can use the identity:(a+b)^2 =a^2+b^2 +2ab

A.T.Q.

2^2+3.1^2+2*2*3.1

=4+9.61+12.4

=26.5

Hope this will help you.

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