Math, asked by himanshukumar92, 8 months ago

(i) p(x+y)+q(x-y) =p2-pq+q2
और p(x + y)-q(x-y) = p2 + pq+ q2, जहाँ p, q शून्य से भिन्न अचर हैं

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Answered by ranaswag123

3

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