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Dear Student Px+qy=p-q ---------(1) qx-py=p+q ---------(2) Multiplying (1) with p and (2) with q we get, p²x+pqy=p²-pq -----------(3) q²x-pqy=pq+q² -----------(4) Adding (3) with (4) we get, p²x+q²x=p²+q² or, x(p²+q²)=p²+q² or, x=1 Putting in (1) we get, p.1+qy=p-q or, qy=p-q-p or, qy=-q or, y=-1 ∴, x=1 and y=-1 Regard

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