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If `z_(1)` and `z_(2)` are two non-zero complex numbers such that `|z_(1)+z_(2)|=|z_(1)|+|z_(2)|`, then arg.`z_(1)-`arg.`z_(2)` equals :

A

0

B

`pm (pi)/(4)`

C

`pm (pi)/(2)`

D

`pi`

Text Solution

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The correct Answer is:
C
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