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If the ratio (1-z)/(1+z) is pyrely imagi...

If the ratio `(1-z)/(1+z)` is pyrely imaginary, then

A

`0 lt |z| lt 1`

B

`|z|=1`

C

`|z| gt 1`

D

bounds for `|z|` can not be decided

Text Solution

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The correct Answer is:
B
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