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Let z1 and z2 be complex numbers such th...

Let `z_1` and `z_2` be complex numbers such that `z_1 nez_2` and `absz_1=absz_2` if `z_1` has positive real part then `(z_1+z_2)/(z_1-z_2)` may be

A

zero

B

real and positive

C

real and negative

D

purely imaginary

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The correct Answer is:
A, D
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