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If z ans w are two non-zero complex numb...

If z ans w are two non-zero complex numbers such that `|zw|=1` and arg (z) = arg (w) `= ( pi)/( 2), bar(z) w` is equal to

A

1

B

`-1`

C

i

D

`-i`

Text Solution

Verified by Experts

The correct Answer is:
D
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