NDA Maths Mock Test – 01 – Q34

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Question:

The number of all possible matrices of order 2 × 3 with each entry 1 or -1 is

The number of all possible matrices of order 2 × 3 with each entry 1 or -1 is

Options:

  • 64
  • 32
  • 6
  • 12
  • 64
  • 32
  • 6
  • 12

Correct Answer: a)

Explanation:

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