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If `|Z_1|=|Z_2|=|Z_3|=1` and `Z_1+Z_2+Z_3=0` then area of the triangle whose vertices are `Z _1,Z_2,Z_3` is-
A. |
`(3sqrt3)/4` |
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B. |
`(sqrt3)/4` |
C. |
1 |
D. |
2 |