શ્રેણિકનો વ્યસ્ત શોધો (જો અસ્તિત્વ ધરાવતો હોય તો): $\left[\begin{array}{ccc}1 & 0 & 0 \\ 0 & \cos a & \sin a \\ 0 & \sin a & -\cos a\end{array}\right]$

  • A
    $\left[\begin{array}{ccc}1 & 0 & 0 \\ 0 & \cos a & \sin a \\ 0 & \sin a & -\cos a\end{array}\right]$
  • B
    $\left[\begin{array}{ccc}1 & 0 & 0 \\ 0 & -\cos a & \sin a \\ 0 & \sin a & -\cos a\end{array}\right]$
  • C
    $\left[\begin{array}{ccc}1 & 0 & 0 \\ 0 & \cos a & \sin a \\ 0 & \sin a & \cos a\end{array}\right]$
  • D
    $\left[\begin{array}{ccc}-1 & 0 & 0 \\ 0 & -\cos a & \sin a \\ 0 & \sin a & -\cos a\end{array}\right]$

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જો $A = \begin{bmatrix} 1 & -1 & 1 \\ 0 & 2 & -3 \\ 2 & 1 & 3 \end{bmatrix}$ અને $B = \operatorname{adj} A$,$C = 5A$ હોય,તો $\frac{|\operatorname{adj} B|}{|C|} = $

ધારો કે $A$ એ $3 \times 3$ ક્રમનો શ્રેણિક છે અને $|A|=5$ છે. જો $|2 \operatorname{adj}(3 A \operatorname{adj}(2 A))|=2^\alpha \cdot 3^\beta \cdot 5^\gamma$ જ્યાં $\alpha, \beta, \gamma \in N$,તો $\alpha+\beta+\gamma$ ની કિંમત શોધો.

ધારો કે $A = \begin{bmatrix} 2 & 1 & 1 \\ 0 & 1 & 0 \\ 1 & 1 & 2 \end{bmatrix}$. જો $A^{-1} = \alpha A^2 + \beta A + \gamma I$,જ્યાં $\alpha, \beta, \gamma$ વાસ્તવિક સંખ્યાઓ છે અને $I$ એ $3 \times 3$ એકમ શ્રેણિક છે,તો $17 \alpha + 5 \beta + \gamma =$

જો $A = \begin{bmatrix} 1 & -1 & 1 \\ 0 & 2 & -3 \\ 2 & 1 & 0 \end{bmatrix}$,$B = \text{adj}(A)$,અને $C = 5A$ હોય,તો $\frac{|\text{adj}(B)|}{|C|}$ ની કિંમત શોધો.

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જો $A = \begin{bmatrix} 5 & -2 \\ 4 & 3 \end{bmatrix}$ હોય,તો $A(\operatorname{adj} A) = $ . . . . . . .

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