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UPSC 2014 CDS I Math Paper

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Question : 14

Total: 100

In solving a problem, one student makes a mistake in the coefficient of the first degree term and obtains - 9 and - 1 for the roots. Another student makes a mistake in the constant term of the equation and obtains 8 and 2 for the roots. The correct equation was

x2+l0x+9=0
x2−10x+16=0
x2−l0x+9=0
None of the above

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