1.

The roots Z1,Z2,Z3 of the equation x3+3px2+3qx+r=0 (p, q, r are complex numbers) correspond to points A, B and C, then triangle ABC is equilateral, if

Answer»

The roots Z1,Z2,Z3 of the equation x3+3px2+3qx+r=0 (p, q, r are complex numbers) correspond to
points A, B and C, then triangle ABC is equilateral, if



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