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Let A be an upper triangular 3xx3 real m...

Let A be an upper triangular `3xx3` real matrices such that det (A) =0 det (A+2.1`I_(3))` =0 and det `(A-3.2 I_(3))` =0 then tr (A) is equal to ___________ .

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The correct Answer is:
`1.10`
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MCGROW HILL PUBLICATION-MATRICES-EXERCISE (Numerical Answer Type Questions)
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