MCQ
$\left|\begin{array}{lll}1 & 1 & -2 \\ 2 & 1 & -3 \\ 5 & 4 & -9\end{array}\right|=$
  • A
    2
  • B
    1
  • $0$
  • D
    -1

Answer

Correct option: C.
$0$
C

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