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UPSC NDA I 2010 Mathematics Paper

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Question : 38

Total: 120

If p and q are positive integers, then which one of the following equations has p−√q as one of its roots?

x2−2px−(p2−q)=0
x2−2px+(p3−q)=0
x2+2px−(p2−q)=0
x2+2px+(p2−q)=0

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