Matrices

Bihar Board Class 12 · Mathematics · 84 past questions

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1. Q5 2026 Set A2026 Set H2026 Set E2026 Set C2026 Set F2026 Set D2026 Set J2026 Set B2024 Set J2024 Set D

   $A = [\,a_{ij}\,]_{m\times n}$ is a square matrix if

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2. Q13 2025

   The number of all possible matrices of order 2 × 2 with each entry 3 or 7 is

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3. Q62 2021 Set J2021 Set I

   Matrix $\begin{bmatrix}a&h&g\\h&b&f\\g&f&c\end{bmatrix}$ is

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4. Q65 2021 Set J2021 Set I

   If $A=\begin{bmatrix}1&0\\0&1\end{bmatrix}$, then

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5. Q72 2019 Set F

   Which of the following is the unit matrix of order $3\times3$?

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6. Q83 2015

   For any unit matrix $I$

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