If A= 10 & 2 30 & 6 then |A| - Vidyadip

MCQ

If $\text{A}=\begin{vmatrix} 10 & 2 \\ 30 & 6 \end{vmatrix}$ then $|\text{A}|$

✓
$0$
B
$10$
C
$12$
D
$60$

✓

Answer

Correct option: A.

$0$

$\text{A}=\begin{vmatrix} 10 & 2 \\ 30 & 6 \end{vmatrix}$
$=10\times6-30\times2$
$=60-60$
$=0$

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