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GATE Mathematics 2014 Paper

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Question : 27

Total: 55

Let A ϵ M3(R) be such that det (A−I)=0 where I denotes the 3×3 identity matrix. If the trace ( A) =13 and det ( A) =32, then the sum of squares of the eigenvalues of A is __

80.99 to 82.01
80.99 to 81.02
80.99 to 81.01
80.89 to 81.01

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