ધારો કે $A = \begin{bmatrix} \cos \theta & -\sin \theta \\ -\sin \theta & -\cos \theta \end{bmatrix}$,તો $A$ નો વ્યસ્ત શ્રેણિક શોધો.

  • A
    $\begin{bmatrix} \cos \theta & -\sin \theta \\ -\sin \theta & -\cos \theta \end{bmatrix}$
  • B
    $\begin{bmatrix} -\cos \theta & \sin \theta \\ \sin \theta & \cos \theta \end{bmatrix}$
  • C
    $\begin{bmatrix} \sin \theta & -\cos \theta \\ \cos \theta & -\sin \theta \end{bmatrix}$
  • D
    $\begin{bmatrix} -\sin \theta & -\cos \theta \\ -\cos \theta & \sin \theta \end{bmatrix}$

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Similar Questions

જો શ્રેણિક $A = \frac{1}{11} \begin{bmatrix} -1 & 7 & -24 \\ 2 & a & 4 \\ 2 & -3 & 15 \end{bmatrix}$ અને $A^{-1} = \begin{bmatrix} 3 & 3 & 4 \\ 2 & -3 & 4 \\ b & -1 & c \end{bmatrix}$ હોય,તો $a, b, c$ ની કિંમતો અનુક્રમે ...... છે.

ધારો કે $X=\begin{bmatrix} 0 & 1 & 0 \\ 0 & 0 & 1 \\ 0 & 0 & 0 \end{bmatrix}$,$Y=\alpha I+\beta X+\gamma X^{2}$ અને $Z=\alpha^{2} I-\alpha \beta X+\left(\beta^{2}-\alpha \gamma\right) X^{2}$,જ્યાં $\alpha, \beta, \gamma \in \mathbb{R}$. જો $Y^{-1}=\begin{bmatrix} \frac{1}{5} & \frac{-2}{5} & \frac{1}{5} \\ 0 & \frac{1}{5} & \frac{-2}{5} \\ 0 & 0 & \frac{1}{5} \end{bmatrix}$ હોય,તો $(\alpha-\beta+\gamma)^{2}$ ની કિંમત શોધો.

શ્રેણિક $A$ એ અસામાન્ય (non-singular) શ્રેણિક છે અને $(A-3I)(A-5I)=0$ છે,તો $\frac{15}{8} A^{-1} =$ . . . . . .

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

જો $A = \begin{bmatrix} 1 & 0 & 1 \\ 0 & 1 & 1 \\ 0 & 1 & 0 \end{bmatrix}$ હોય,તો $A^{-1} =$

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