Matrices

Bihar Board Class 12 · Mathematics · 84 past questions

14 of 84 · show all

1. Q14 2025

   $6\begin{bmatrix} -2 & 1 \\ 3 & 5 \end{bmatrix} =$

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2. Q18 2025

   $2\begin{bmatrix} 3 & 7 \\ 1 & -2 \end{bmatrix} + 5\begin{bmatrix} 1 & 3 \\ 0 & 4 \end{bmatrix} =$

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3. Q37 2024 Set D2024 Set J

   If $A=\begin{bmatrix}3&6\\-5&4\end{bmatrix}$ and $B=\begin{bmatrix}7&8\\5&6\end{bmatrix}$ then $6A-5B=$

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4. Q39 2024 Set D2024 Set J

   If $2A+B+X=0$, where $A=\begin{bmatrix}-1&2\\3&4\end{bmatrix}$ and $B=\begin{bmatrix}3&-2\\1&5\end{bmatrix}$…

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5. Q40 2024 Set D

   $5\begin{bmatrix}5&6\\7&8\end{bmatrix}=$

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6. Q44 2024 Set J

   $5\begin{bmatrix} 5 & 6 \\ 7 & 8 \end{bmatrix} =$

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7. Q51 2023

   $3\begin{bmatrix} 7 & -2 \\ 8 & 0 \end{bmatrix} =$

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8. Q56 2023 Set E

   $3\begin{bmatrix}7&-2\\8&0\end{bmatrix}=$

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9. Q61 2021 Set I

   $\begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix} + \begin{bmatrix} 0 & 1 \\ 1 & 0 \end{bmatrix} =$

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10. Q69 2021 Set J

    $\begin{bmatrix}1&0\\0&1\end{bmatrix}+\begin{bmatrix}0&1\\1&0\end{bmatrix}=$

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11. Q73 2019 Set F2016

    $A=\begin{bmatrix}3&6\\5&-4\end{bmatrix},\ B=\begin{bmatrix}7&8\\5&6\end{bmatrix}\Rightarrow 2A+3B=$

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12. Q77 2017

    If $A=\begin{bmatrix}9&10&11\\12&13&14\end{bmatrix}$ and $B=\begin{bmatrix}11&10&9\\8&7&6\end{bmatrix}$ then…

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13. Q78 2017

    If $A=\begin{bmatrix}2&5\\3&1\end{bmatrix}$ and $B=\begin{bmatrix}1&5\\6&2\end{bmatrix}$ then find $(A+B)$…

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14. Q84 2015

    Find the value of $X$ and $Y$…

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