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If the complex numbers z1,z2,z3 represen...

If the complex numbers `z_1,z_2,z_3` represents the vertices of a triangle ABC, where `z_1,z_2,z_3` are the roots of equation `z^3+3alphaz^2+3alphaz^2+3betaz+gamma=0, alpha,beta,gamma` beng complex numbers and `alpha^2=beta then /_\ABC` is (A) equilateral (B) right angled (C) isosceles but not equilateral (D) scalene

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