If the equation a∣z∣2+αˉz+αzˉˉ+d=0 represents a circle where a,d are real constants then which of the following condition is correct?
Held on 18 Mar 2021 · Verified 6 Jul 2026.
∣α∣2−ad=0
∣α∣2−ad>0 and a∈R−0
∣α∣2−ad≥0 and a∈R
α=0,a,d∈R+
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