$x$ ની કઈ કિંમત માટે $\left| \begin{array}{ccc} x + \omega^2 & \omega & 1 \\ \omega & \omega^2 & 1 + x \\ 1 & x + \omega & \omega^2 \end{array} \right| = 0$ થશે?

  • A
    $x = 0$
  • B
    $x = 1$
  • C
    $x = -1$
  • D
    આમાંથી કોઈ નહીં

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જો $60 \hat{i}+3 \hat{j}$,$40 \hat{i}-8 \hat{j}$ અને $a \hat{i}-52 \hat{j}$ સ્થાન સદિશો ધરાવતા બિંદુઓ સમરેખ હોય,તો $a$ ની કિંમત શોધો.

જો $A = \begin{vmatrix} \sin(\theta + \alpha) & \cos(\theta + \alpha) & 1 \\ \sin(\theta + \beta) & \cos(\theta + \beta) & 1 \\ \sin(\theta + \gamma) & \cos(\theta + \gamma) & 1 \end{vmatrix}$ હોય,તો

નિશ્ચાયક $\left| \begin{array}{ccc} -1 & 1 & 1 \\ 1 & -1 & 1 \\ 1 & 1 & -1 \end{array} \right|$ નું મૂલ્ય કેટલું થાય?

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