Q. 5 B5.0( 1 Vote )

Evaluate the following by using the identities:

482

Answer :

482 = (50 – 2)2


We know that


(a– b)2 = a2 + b2 – 2a×b


(50 – 2)2 = ((50)2 + (2)2 – 2×50×2)


(50 – 2)2 = 2500 + 4 – 200


482 = 2304


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