MCQ
Choose the correct answer from the given four options. For any two matrices $A$ and $B,$ we have:
  • A
    $\text{AB}=\text{BA}$
  • B
    $\text{AB}\neq\text{BA}$
  • C
    $\text{AB}=\text{O}$
  • None of the above.

Answer

Correct option: D.
None of the above.

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