

MCQOPTIONS
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1. |
If \[\sqrt{3}+i=(a+ib)(c+id)\], then \[{{\tan }^{-1}}\left( \frac{b}{a} \right)+\] \[{{\tan }^{-1}}\left( \frac{d}{c} \right)\] has the value |
A. | \[\frac{\pi }{3}+2n\pi ,n\in I\] |
B. | \[n\pi +\frac{\pi }{6},n\in I\] |
C. | \[n\pi -\frac{\pi }{3},n\in I\] |
D. | \[2n\pi -\frac{\pi }{3},n\in I\] |
Answer» C. \[n\pi -\frac{\pi }{3},n\in I\] | |