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If (2z1)/(3z2) is purely imaginary then ...

If `(2z_1)/(3z_2)` is purely imaginary then `|(z_(1)-z_(2))/(z_(1)+z_(2))|`

A

`(2)/(3)`

B

`(3)/(2)`

C

`(4)/(9)`

D

1

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The correct Answer is:
D
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