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Let z1 and z2 be theroots of the equatio...

Let `z_1 and z_2` be theroots of the equation `z^2+az+b=0` z being compex. Further, assume that the origin `z_1 and z_2` form an equilatrasl triangle then (A) `a^2=4b` (B) `a^2=b` (C) `a^2=2b` (D) `a^2=3b

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