If = | lll 5 & 3 & 8 2 & 0 & 1 1 & 2 & 3 |, write the minor of th… - Vidyadip

MCQ

If $\Delta=\left|\begin{array}{lll}5 & 3 & 8 \\ 2 & 0 & 1 \\ 1 & 2 & 3\end{array}\right|$, write the minor of the element $a_{23}$.

A
5
B
6
✓
7
D
8

✓

Answer

Correct option: C.

7

(c) : Minor of $a_{23}=\left|\begin{array}{ll}5 & 3 \\ 1 & 2\end{array}\right|=10-3=7$

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