If \[-1+\sqrt{-3}=r{{e}^{i\theta }},\]then \[\theta \] is equal to [RPET 1989; MP PET 1999]

If \[-1+\sqrt{-3}=r{{e}^{i\theta }},\]then \[\theta \] is equal to [RP

1.	If \[-1+\sqrt{-3}=r{{e}^{i\theta }},\]then \[\theta \] is equal to [RPET 1989; MP PET 1999]
A.	\[\frac{\pi }{3}\]
B.	\[-\frac{\pi }{3}\]
C.	\[\frac{2\pi }{3}\]
D.	\[-\frac{2\pi }{3}\]
Answer» D. \[-\frac{2\pi }{3}\]

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If \[-1+\sqrt{-3}=r{{e}^{i\theta }},\]then \[\theta \] is equal to [RPET 1989; MP PET 1999]

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