Determinants

CBSE Class 12 · Mathematics · 30 past questions

3 of 30 · show all

1. Q22 2023

   If $A \cdot (\operatorname{adj} A) = \begin{bmatrix} 3 & 0 & 0 \\ 0 & 3 & 0 \\ 0 & 0 & 3 \end{bmatrix}$, then…

   Try it →
2. Q24 2023

   If for a square matrix A, $A^2 - 3A + I = O$ and $A^{-1} = xA + yI$, then the value of $x + y$ is…

   Try it →
3. Q30 2023

   If $A=\begin{bmatrix}-3&-2&-4\\2&1&2\\2&1&3\end{bmatrix}$…

   Try it →