A) \[-\frac{\pi }{4}\]
B) \[\frac{\pi }{4}\]
C) \[-\frac{7\pi }{4}\]
D) None of these
Correct Answer: A
Solution :
Given, \[z=1-i\] Here, given point z lies in IVth quadrant. \[\therefore \] \[\arg \,\,(z)=-{{\tan }^{-1}}\left( \frac{1}{1} \right)\] \[=-\frac{\pi }{4}\]
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