નિશ્ચાયક $ \left|\begin{array}{cc}\cos 15^{\circ} & \sin 15^{\circ} \\ \sin 75^{\circ} & \cos 75^{\circ}\end{array}\right| $ ની કિંમત શોધો.

  • A
    $ 1 $
  • B
    $ 0 $
  • C
    $ 1/2 $
  • D
    $ 1/3 $

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Similar Questions

$\begin{vmatrix} \cos^2\theta & -\sin^2\theta \\ \sin^2\theta & \cos^2\theta \end{vmatrix} = \dots$

નિશ્ચાયક $\left| \begin{array}{ccc} 1 & \cos(\alpha - \beta) & \cos \alpha \\ \cos(\alpha - \beta) & 1 & \cos \beta \\ \cos \alpha & \cos \beta & 1 \end{array} \right|$ નું મૂલ્ય છે

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$x$ ની કઈ કિંમતો માટે આપેલ શ્રેણિક $\left[\begin{array}{ccc}-x & x & 2 \\ 2 & x & -x \\ x & -2 & -2\end{array}\right]$ અસામાન્ય (non-singular) બનશે?

$x$ ની કિંમતો શોધો જેના માટે $\left|\begin{array}{ll}3 & x \\ x & 1\end{array}\right|=\left|\begin{array}{ll}3 & 2 \\ 4 & 1\end{array}\right|$ થાય.

$\left| \begin{array}{ccc} 1 & 1 & 1 \\ 1 & \omega^2 & \omega \\ 1 & \omega & \omega^2 \end{array} \right| = $

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