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If z1,z2,z3 are non zero non collinear c...

If `z_1,z_2,z_3` are non zero non collinear complex number such that `2/z_1=1/z_2+ 1/z_3, then` (A) ponts `z_1,z_2,z_3` form and equilateral triangle (B) points `z_1,z_2,z_3 `lies on a circle (C) `z_1,z_2,z_3` and origin are concylic (D) `z_1+z_2+z_3=0`

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