यदि $A = \begin{bmatrix} \alpha & 2 \\ 2 & \alpha \end{bmatrix}$ और $|A^3| = 125$ है,तो $\alpha = $

  • A
    $\pm 3$
  • B
    $\pm 2$
  • C
    $\pm 5$
  • D
    $0$

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