If |z|=1 and omega=(z-1)/(z+1) (where z ...

If `|z|=1` and `omega=(z-1)/(z+1)` (where `z in -1`), then Re`(omega)` is

A

0

B

`(1)/(|z+1|^(2))`

C

`(1)/(|z+1|).(1)/(|z+1|^(2))`

D

`(sqrt(2))/(|z +1|^(2))`

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The correct Answer is:

A

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