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Mathematics
Mathematics
Problem
If
z
z
z
is a complex number of unit modulus and argument
θ
\theta
θ
, then
1
+
z
1
+
z
ˉ
\frac{1+z}{1+\bar{z}}
1
+
z
ˉ
1
+
z
equals to a.
π
2
−
θ
\frac{\pi}{2} - \theta
2
π
−
θ
b.
θ
\theta
θ
c.
π
−
θ
\pi - \theta
π
−
θ
d.
−
θ
-\theta
−
θ
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