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Let `z_1` be a fixed point on the circle of radius 1 centered at the origin in the Argand plane and `z_1 ne+-1` consider an equilateral triangle inscribed in the circle with `z_1,z_2,z_3` as the vertices taken in the counter clockwise directtion then `z_1z_2z_3` is equal to

A

`z_1^2`

B

`z_1^3`

C

`z_1^4`

D

z_1

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The correct Answer is:
B
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