MCQ
$\left|\begin{array}{lll}3 & 4 & 5 \\ 0 & 2 & 3 \\ 0 & 0 & 7\end{array}\right|=$ ................
  • A
    40
  • B
    50
  • 42
  • D
    15

Answer

Correct option: C.
42
C

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