Q.
In the determinant $\left| \begin{matrix}
0 & 1 & - 2 \\
- 1 & 0 & 3 \\
2 & - 3 & 0
\end{matrix} \right|$, the value of cofactor to its minor of the element $- 3$ is
A) $- 1$
B) 0
C) 1
D) 2
Explanation
(a)
Ratio of cofactor to its minor of the element $- 3$, which is in the $3rd$ row and $2nd$ column $= ( - 1)^{3 + 2} = - 1$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.