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

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

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Similar Questions

જો $\text{adj} \begin{bmatrix} 1 & 0 & 2 \\ -1 & 1 & -2 \\ 0 & 2 & 1 \end{bmatrix} = \begin{bmatrix} 5 & m & -2 \\ 1 & 1 & 0 \\ -2 & -2 & n \end{bmatrix}$ હોય, તો $m+n=$

દરેક શ્રેણિકનો વ્યસ્ત શ્રેણિક શોધો (જો અસ્તિત્વ ધરાવતો હોય તો). $\left[\begin{array}{ccc}1 & 0 & 0 \\ 3 & 3 & 0 \\ 5 & 2 & -1\end{array}\right]$

શ્રેણિક $N = \begin{bmatrix} -4 & -3 & -3 \\ 1 & 0 & 1 \\ 4 & 4 & 3 \end{bmatrix}$ નો એડજોઈન્ટ (સહઅવયવજ) શું છે?

ધારો કે $A=\left[\begin{array}{ccc}1 & -2 & 1 \\ -2 & 3 & 1 \\ 1 & 1 & 5\end{array}\right]$. ચકાસો કે $\left(A^{-1}\right)^{-1}=A$.

શ્રેણિક $\begin{bmatrix} 5 & -2 \\ 3 & 1 \end{bmatrix}$ નો વ્યસ્ત શ્રેણિક શોધો.

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