If | , * 20 c a&b&c &n&p &y&z , | = k, then | , * 20 c 6a & 2b & … - Vidyadip

MCQ

If $\left| {\,\begin{array}{*{20}{c}}a&b&c\\m&n&p\\x&y&z\end{array}\,} \right| = k$, then $\left| {\,\begin{array}{*{20}{c}}{6a}&{2b}&{2c}\\{3m}&n&p\\{3x}&y&z\end{array}\,} \right| = $

A
$k/6$
B
$2k$
C
$3k$
✓
$6k$

✓

Answer

Correct option: D.

$6k$

d
(d)$\left| {\,\begin{array}{*{20}{c}}{6a}&{2b}&{2c}\\{3m}&n&p\\{3x}&y&z\end{array}\,} \right|= 2 × 3$ $\left| {\,\begin{array}{*{20}{c}}a&b&c\\m&n&p\\x&y&z\end{array}\,} \right| = 6k$.

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