Math, asked by astharai56, 6 months ago

(p+q)(p-q)+(p+r)(r-p)-(r2-q2)

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Answered by ayushyadav26112004

5

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Answered by Anonymous

3

p²+pq-qp-q²+rp+r²-p²-pr-r²-q²

=+pq-qp+rp-pr

=0 ans...

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