If z1 z2 are two complex numbers such that Im z1 z2 0 and Im z1z2 0 then ........

If z₁, z₂ are two complex numbers such that Im (z₁ + z₂) =0 and Im (z₁z₂) =0, then

z₁ = -z₂

z₁ = z₂

$z_{1}=z\bar{}_{2}$

None of these

$z_{1}=z\bar{}_{2}$

Submit Error