In the determinant | , * 20 c 0&1& - 2 - 1 &0&3 2& - 3 &0 , |, th… - Vidyadip

MCQ

In the determinant $\left| {\,\begin{array}{*{20}{c}}0&1&{ - 2}\\{ - 1}&0&3\\2&{ - 3}&0\end{array}\,} \right|$, the ratio of the co-factor to its minor of the element $-3$ is

✓
$-1$
B
$0$
C
$1$
D
$2$

✓

Answer

Correct option: A.

$-1$

a
(a) Ratio of cofactor to its minor of the element $-3$, which is in the $3^{rd}$ row and $2^{nd}$ column = ${( - 1)^{3 + 2}} = - 1$.

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