Q. 4 A5.0( 1 Vote )

Find out the following squares by using the identities:

(p – q)2

Answer :

Given (p – q)2

We know that

(a– b)2 = a2 + b2 – 2a×b

(p – q)2 = ((p)2 + (q)2 – 2×p×q)

(p – q)2 = p2 + q2 – 2pq

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