$z = -1 - i\sqrt{3}$ का कोणांक (argument) ज्ञात कीजिए।

  • A
    $\frac{2\pi}{3}$
  • B
    $\frac{\pi}{3}$
  • C
    $-\frac{\pi}{3}$
  • D
    $-\frac{2\pi}{3}$

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