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NDA2013MathematicsMatricesActual

If 2 ~A = ( array ll 2 & 1 3 & 2 array ) , then what is A ⁻¹ equal to?

Options

  1. A( array cc 2 & -1 -3 & 2 array )
  2. B1 2 ( array cc 2 & -1 -3 & 2 array )
  3. C1 4 ( array cc 2 & -1 -3 & 2 array )
  4. DNone of the above

Correct answer

B. 1 2 ( array cc 2 & -1 -3 & 2 array )

Step-by-step solution

The correct option is 'B'.

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