Matrices

Bihar Board Class 12 · Mathematics · 84 past questions

9 of 84 · show all

1. Q60 2021 Set I

   If $A=\begin{bmatrix}1&1&1\\1&1&1\\1&1&1\end{bmatrix}$, then $A^2 =$

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2. Q61 2021 Set I

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

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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. Q63 2021 Set J2021 Set I

   $A$ is a square matrix, then $A+A'$ is necessarily

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5. Q65 2021 Set J2021 Set I

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

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6. Q66 2021 Set J2021 Set I

   Find the value of $x$ from the following…

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7. Q67 2021 Set J2021 Set I

   If $A = \begin{bmatrix} 4\alpha & 0 \\ 5 & 1 \end{bmatrix}$…

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8. Q68 2021 Set J

   If $A = \begin{bmatrix} 1 & 1 & 1 \\ 1 & 1 & 1 \\ 1 & 1 & 1 \end{bmatrix}$, then $A^2 =$

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9. Q69 2021 Set J

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

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