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If |z + omega|^(2) = |z|^(2)+|omega|^(2...

If ` |z + omega|^(2) = |z|^(2)+|omega|^(2)`, where z and ` omega ` are complex numbers , then

A

`z/omega ` is purely real

B

`z/omega` is purely imaginary

C

`zbaromega + barz omega =0`

D

` amp ( z/omega) = pi/2`

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B, C, D
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