Q. 144.2( 5 Votes )

# If then

A. 36 B. 38

C. 32 D.

Answer :

We know that,

From formula, (a – b)^{2} = a^{2} + b^{2} – 2ab

……………….(i)

And

Putting value of in equation (i), we get,

(6)^{2} =

= 36+ 2= 38.

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