If $z$ is a complex number of unit modulus and argument $\theta$, then $\arg\left(\frac{1+z}{1+\bar{z}}\right)$ can be equal to (given $z \neq -1$) (1) $\theta$ (2) $\pi - \theta$ (3) $-\theta$ (4) $\frac{\pi}{2} - \theta$
If $z$ is a complex number of unit modulus and argument $\theta$, then $\arg\left(\frac{1+z}{1+\bar{z}}\right)$ can be equal to (given $z \neq -1$)\\
(1) $\theta$\\
(2) $\pi - \theta$\\
(3) $-\theta$\\
(4) $\frac{\pi}{2} - \theta$