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NDA2014MathematicsDeterminantsActual

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

Options

  1. A3
  2. B-9
  3. C-27
  4. DNone of these

Correct answer

C. -27

Step-by-step solution

The correct answer is option(C)

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