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. \[n\pi -\frac{\pi }{3},n\in I\]


Discussion

No Comment Found