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Let z1, z2, z3 be three vertices of an e...

Let `z_1, z_2, z_3` be three vertices of an equilateral triangle circumscribing the circle `|z| = 1/2`. If `z_1 = 1/2+ ((sqrt3)i)/2` and `z_1, z_2, z_3` were in anticlockwise sense then `z_2` is

A

`1+ sqrt(3i) `

B

`1-sqrt(3i)`

C

1

D

` - 1`

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