Amplitude of $\left( {\frac{{1 - i}}{{1 + i}}} \right)$ is
Amplitude of $\left( {\frac{{1 - i}}{{1 + i}}} \right)$ is
- A
$-\pi\over2$
- B
$\pi\over2$
- C
$\pi\over4$
- D
$\pi\over6$
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