$A=\left[\begin{array}{rr}\cos \theta & -\sin \theta \\ \sin \theta & \cos \theta\end{array}\right]$ અને $AB=BA=I$ હોય,તો $B$ બરાબર શું થાય?

  • A
    $\left[\begin{array}{rr}-\cos \theta & \sin \theta \\ \sin \theta & \cos \theta\end{array}\right]$
  • B
    $\left[\begin{array}{rr}\cos \theta & \sin \theta \\ -\sin \theta & \cos \theta\end{array}\right]$
  • C
    $\left[\begin{array}{rr}-\sin \theta & \cos \theta \\ \cos \theta & \sin \theta\end{array}\right]$
  • D
    $\left[\begin{array}{rr}\sin \theta & -\cos \theta \\ -\cos \theta & \sin \theta\end{array}\right]$

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Similar Questions

જો શ્રેણિક $A = \left[\begin{array}{ll}4 & 5 \\ 3 & 4\end{array}\right]$ નો વ્યસ્ત શ્રેણિક અસ્તિત્વ ધરાવતો હોય,તો તે શોધો.

ધારો કે $A = \begin{bmatrix} 2 & 3 \\ -4 & -6 \end{bmatrix}$. ચકાસો કે $A(\text{adj } A) = (\text{adj } A) A = |A| I$.

શ્રેણિક $A = \begin{bmatrix} 2 & 0 & 0 \\ 0 & 3 & 0 \\ 0 & 0 & 4 \end{bmatrix}$ માટે,$(A^{-1})^2 = $ . . . . . .

શ્રેણિક $\begin{bmatrix} 1 & 0 & 0 \\ 0 & 1 & 0 \\ 0 & 0 & 1 \end{bmatrix}$ નો વ્યસ્ત શ્રેણિક શોધો.

${\left[ {\begin{array}{*{20}{c}}1&3\\3&{10}\end{array}} \right]^{ - 1}} = $

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