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Specialist2025 Exam 2 Section A · Q6CAS active1 mark

Real part of 1/(1 − z) on the unit circle

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Let $z \in C$ .

Given that $|z| = 1$ and $z \neq 1$ , $\operatorname{Re}\left(\dfrac{1}{1-z}\right)$ is

1 mark

A

0

B

0

C

\frac{1}{2}

D

\frac{\sqrt{3}}{2}

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