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NDA2015MathematicsMatricesActual

If E( )= [ array cc & - & array ] , then E( ) E( ) is equal to

Options

  1. AE( )
  2. BE( - )
  3. CE( + )
  4. D-E( + )

Correct answer

C. E( + )

Step-by-step solution

aligned & E( )= [ array cc & - & array ] & Now E( )= [ array cc & - & array ] aligned aligned & and E( )= [ array cc & - & array ] & Now E( ) E( )= [ array cc & - & array ] [ array cc & - & array ] & = [ array cc & - & + - & - - & + array ] & = [ array cc ( + ) & ( + ) - ( + ) & ( + ) array ] & =E( + ) aligned Option (C) is correct.

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