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UPSC NDA II 2013 Mathematics Paper

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Question : 34

Total: 120

If a and b are rational and b is not perfect square, then the quadratic equation with rational coefficients whose one root is 3a+√b is

x2−6ax+9a2−b=0
3ax2+x−√b=0
x2+3ax+√b=0
√bx2+x−3a=0

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