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Let z(1)andz(2) be complex numbers such ...

Let `z_(1)andz_(2)` be complex numbers such that `z_(1)nez_(2)and|z_(1)|=|z_(2)|`. If `Re(z_(1))gt0andIm(z_(2))lt0`, then `(z_(1)+z_(2))/(z_(1)-z_(2))` is

A

one

B

real and positive

C

real and negative

D

purely imaginary

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The correct Answer is:
A, B
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