જો ${I_3}$ એ $3$ ક્રમનો એકમ શ્રેણિક (identity matrix) હોય,તો ${I_3}^{-1}$ શું થાય?

  • A
    $0$
  • B
    $3{I_3}$
  • C
    ${I_3}$
  • D
    અસ્તિત્વ ધરાવતું નથી

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Similar Questions

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

જો $A = \begin{bmatrix} 2x & 0 \\ x & x \end{bmatrix}$ અને $A^{-1} = \begin{bmatrix} 1 & 0 \\ -1 & 2 \end{bmatrix}$ હોય,તો $x =$ . . . . . . .

શ્રેણિક $A$ નું લાક્ષણિક સમીકરણ $\lambda^{3}-5 \lambda^{2}-3 \lambda+2=0$ છે. તો $|\text{adj}(A)|$ ની કિંમત શોધો.

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

જો $A = \begin{bmatrix} 2 & 2 \\ 9 & 4 \end{bmatrix}$ અને $I = \begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix}$ હોય,તો $10 A^{-1}$ ની કિંમત શોધો.

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