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    Question

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    A 1, 2, 4 Correct Answer Incorrect Answer
    B 3, 2, 2 Correct Answer Incorrect Answer
    C 1, 1, 3 Correct Answer Incorrect Answer
    D 1, 3, 3 Correct Answer Incorrect Answer

    Solution

    characteristic equation det(AтИТ╬╗I)=0, where I is the identity matrix and ╬╗ represents the┬а eigenvalues. The eigenvalues are the values of ╬╗ that satisfy this equation: 3 тИТ ╬╗ =0 тЯ╣ ╬╗=3 ╬╗тИТ1=0 тЯ╣ ╬╗=1 ╬╗тИТ3=0 тЯ╣ ╬╗=3 The eigenvalues are 1, 3, 3.

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