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CBSE Class 10 Answered

urgent
Asked by 2806rahul | 30 May, 2010, 09:28: AM
Expert Answer

Dear Student,

p(x) + q(y) = p - q.................(1)

q(x) - p(y) = p + q.................(2)

multiply eqn(1) by p and eqn(2)  by q

p2x+pqy = p2-pq...............(3)

q2x-pqy = pq+q2 ..............(4)

eqn(3)+eqn(4)

=> (p2+q2)x = (p2+q2)

=> x=1

substitutin this value in eqn(1)

y= - 1

Regards Topperlearning.

 

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