5 | ll 1 & 2 3 & 4 |= - Vidyadip

MCQ

$5\left|\begin{array}{ll}1 & 2 \\ 3 & 4\end{array}\right|=$

A
$\left|\begin{array}{cc}5 & 10 \\ 15 & 20\end{array}\right|$
B
$\left|\begin{array}{cc}5 & 2 \\ 3 & 20\end{array}\right|$
✓
$\left|\begin{array}{ll}5 & 10 \\ 3 & 4\end{array}\right|$
D
$\left|\begin{array}{ll}1 & 10 \\ 15 & 20\end{array}\right|$

✓

Answer

Correct option: C.

$\left|\begin{array}{ll}5 & 10 \\ 3 & 4\end{array}\right|$

C

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