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Let z1 and z2 be two complex numbers suc...

Let z_1 and z_2 be two complex numbers such that `z_1+z_2` and `z_1z_2` both are real, theb

A

`z_1= -z_2`

B

`z_1 = barz_2`

C

`z_1 = -barz_2`

D

`z_1 = z_2`

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