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If z=(-1)/(2)+i(sqrt(3))/(2), " then "8+...

If `z=(-1)/(2)+i(sqrt(3))/(2), " then "8+10z+7z^(2)` is equal to

A

`(-1)/(1)-i(sqrt(3))/(2)`

B

`(1)/(2)+i(sqrt(3))/(2)`

C

`(-1)/(2)+i(3sqrt(3))/(2)`

D

`(sqrt(3))/(2)i`

Text Solution

Verified by Experts

The correct Answer is:
C
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