Matrices

CBSE Class 12 · Mathematics · 34 past questions

6 of 34 · show all

1. Q9 2025

   Let $A = \begin{bmatrix} 1 & -2 & -1 \\ 0 & 4 & -1 \\ -3 & 2 & 1 \end{bmatrix}$…

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2. Q10 2025

   If $A = \begin{bmatrix} 7 & 0 & x \\ 0 & 7 & 0 \\ 0 & 0 & y \end{bmatrix}$ is a scalar matrix, then $y^x$ is…

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3. Q11 2025

   If A and B are invertible matrices, then which of the following is not correct ?

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4. Q13 2025

   Which of the following can be both a symmetric and skew-symmetric matrix ?

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5. Q14 2025

   Four friends Abhay, Bina, Chhaya and Devesh were asked to simplify 4 AB + 3(AB + BA) – 4 BA, where A and B…

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6. Q17 2025

   The matrix $\begin{bmatrix}0&1&-2\\-1&0&-7\\2&7&0\end{bmatrix}$ is a…

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