ધારો કે $A = \begin{bmatrix} 2 & -2 & -4 \\ -1 & 3 & 4 \\ 1 & -2 & x \end{bmatrix}$ અને $A^2 = A$ છે. જો $r$ એ $A$ નો શ્રેણીકનો ક્રમ (rank) હોય,તો $r + x =$

  • A
    -$3$
  • B
    $2$
  • C
    $1$
  • D
    -$1$

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Similar Questions

શ્રેણિક $\begin{bmatrix} 2 & -3 & 4 & 0 \\ 5 & -4 & 2 & 1 \\ 1 & -3 & 5 & -4 \end{bmatrix}$ નો ક્રમ (rank) શોધો.

$\triangle ABC$ માટે,નિશ્ચાયકનું મૂલ્ય શોધો: $\left|\begin{array}{ccc}0 & \sin A & \tan B \\ -\sin ( B + C ) & 0 & \cos C \\ \tan ( A + C ) & -\cos C & 0\end{array}\right|=$ . . . . . . .

ધારો કે $f(x) = \begin{vmatrix} \cos x & \sin x & \cos x \\ \cos 2x & \sin 2x & 2\cos 2x \\ \cos 3x & \sin 3x & 3\cos 3x \end{vmatrix}$. તો $f'\left(\frac{\pi}{2}\right) = $

જો $y = \left|\begin{array}{ccc}f(x) & g(x) & h(x) \\ l & m & n \\ a & b & c\end{array}\right|$ હોય,તો $\frac{dy}{dx}$ બરાબર શું થાય?

જો $f(x) = \left| \begin{array}{ccc} 2 \cos x & 1 & 0 \\ x - \frac{\pi}{2} & 2 \cos x & 1 \\ 0 & 1 & 2 \cos x \end{array} \right|$ હોય,તો $f^{\prime}(\pi)$ ની કિંમત શોધો.

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