Deuce3675 Deuce3675
  • 29-04-2024
  • Mathematics
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Let a be any three by three invertible matrix. Which one of the following is not always true about the adjoint of a?
1) The adjoint of a is always invertible.
2) The adjoint of a is always symmetric.
3) The adjoint of a is always equal to the inverse of a.
4) The adjoint of a is always a square matrix

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