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Miscellaneous·2014·Easy

If A and B are square matrices of second order such that |A| = –1, |B| = 3, then what is |3AB| equal to ?

If A and B are square matrices of second order such that |A| = –1, |B| = 3, then what is |3AB| equal to ?

Options

  1. a.

    3

  2. b.

    –9

  3. c.

    –27

    Correct answer
  4. d.

    None of the above

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