UPSC NDA II 2023 Mathematics Solved Paper

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Question : 83 of 120
 
Marks: +1, -0
Given that 16p2+49q2−4r2−56pq=0 Which one of the following is a point on a pair of straight lines (px+qy+r)(px+qy−r)=0 ?
[NDA II 2023]
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