જો $A = \begin{bmatrix} 1 & 2 & 3 \\ 1 & 3 & 5 \\ 2 & 1 & 6 \end{bmatrix}$ અને $|\text{adj}(\text{adj } A)|(\text{adj } A)^{-1} = kA$ હોય,તો $k = $

  • A
    $1296$
  • B
    $216$
  • C
    $36$
  • D
    $432$

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Similar Questions

જો $A^{-1}=\left[\begin{array}{ccc}3 & -1 & 1 \\ -15 & 6 & -5 \\ 5 & -2 & 2\end{array}\right]$ અને $B=\left[\begin{array}{ccc}1 & 2 & -2 \\ -1 & 3 & 0 \\ 0 & -2 & 1\end{array}\right],$ હોય,તો $(AB)^{-1}$ શોધો.

શ્રેણિક $\begin{bmatrix} 1 & 2 \\ 3 & 4 \end{bmatrix}$ નો એડજોઈન્ટ (adjoint) શોધો.

ધારો કે $A = \begin{bmatrix} -\cot \theta & \operatorname{cosec} \theta \\ \operatorname{cosec} \theta & -\cot \theta \end{bmatrix}$. જો $\theta = \theta_1$ પર $A^{-1} = A$ અને $\theta = \theta_2$ પર $A^{-1} + A = O$ હોય,તો નીચેનામાંથી કયું સાચું છે?

જો $X = \begin{bmatrix} -x & -y \\ z & t \end{bmatrix}$ હોય,તો $\text{adj } X$ નો પરિવર્તિત શ્રેણિક (transpose) શું થાય?

જો $A = \begin{bmatrix} 2 & -4 \\ -3 & 6 \end{bmatrix}$ હોય,તો $A^{-1} =$ . . . . . . .

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