The minimum and the maximum eigen values of the matrix left...

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The minimum and the maximum eigen values of the matrix \[\left[ {\begin{array}{*{20}{c}} 1&1&3 \\ 1&5&1 \\ 3&1&1 \end{array}} \right]\] are -2 and 6, respectively. What is the other eigen value?

A. 5

B. 3

C. 1

D. -1

Answer: Option B

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