The principal solutions of $\cot x + \sqrt{3} = 0$ are

  • A
    $\frac{5 \pi}{6}, \frac{11 \pi}{6}$
  • B
    $\frac{\pi}{6}, \frac{7 \pi}{6}$
  • C
    $\frac{\pi}{6}, \frac{5 \pi}{6}$
  • D
    $\frac{5 \pi}{6}, \frac{7 \pi}{6}$

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