MCQ
If $A$  is a singular matrix of order $n$ , then $A(adj\,A)$ is
  • Zero matrix
  • B
    Row matrix
  • C
    Unit matrix
  • D
    None of these

Answer

Correct option: A.
Zero matrix
a
(a) If $A $ is a singular matrix of order $n$,

then $A(adj\,A) = (adj\,A)A = O = $ singular matrix.

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