જો $A = \begin{bmatrix} 2 & -1 \\ -1 & 2 \end{bmatrix}$ એ રીતે હોય કે $A^2 - 4A + 3I = 0$,જ્યાં $I$ એ $2$ કક્ષાનો એકમ શ્રેણિક છે,તો $A^{-1}$ શું થાય?

  • A
    $\frac{1}{3} \begin{bmatrix} -2 & 1 \\ 1 & -2 \end{bmatrix}$
  • B
    $\frac{1}{3} \begin{bmatrix} 2 & -1 \\ -1 & 2 \end{bmatrix}$
  • C
    $\frac{1}{3} \begin{bmatrix} 2 & 1 \\ 1 & 2 \end{bmatrix}$
  • D
    $\frac{1}{3} \begin{bmatrix} -1 & 2 \\ 2 & -1 \end{bmatrix}$

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Similar Questions

જો $A = \frac{1}{2} \begin{bmatrix} -1 & -\sqrt{3} \\ \sqrt{3} & -1 \end{bmatrix}$ હોય, તો $A^{-1} - A^2$ શું નથી:

જો $\begin{bmatrix} 1 & -\tan \theta \\ \tan \theta & 1 \end{bmatrix} \begin{bmatrix} 1 & \tan \theta \\ -\tan \theta & 1 \end{bmatrix}^{-1} = \begin{bmatrix} a & -b \\ b & a \end{bmatrix}$ હોય,તો

જો $A = \begin{bmatrix} 2 & -3 \\ 5 & -7 \end{bmatrix}$ હોય,તો $2A - 3A^{-1} = $

$\begin{aligned} & A(\alpha, \beta)=\left[\begin{array}{ccc}\cos \alpha & \sin \alpha & 0 \\ -\sin \alpha & \cos \alpha & 0 \\ 0 & 0 & e^\beta\end{array}\right] \\ & \Rightarrow[A(\alpha, \beta)]^{-1}=\end{aligned}$

જો $A = \begin{bmatrix} k & 5 & 2 \\ 2 & -k & 5 \\ 5 & 2 & -k \end{bmatrix}$ અને $\det A = 190$ હોય, તો $\operatorname{Adj} A = $

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