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Let omega be the solution of x^(3)-1=0 w...

Let `omega` be the solution of `x^(3)-1=0` with `"Im"(omega) gt 0`. If a=2 with b and c satisfying `[abc][{:(1,9,7),(2,8,7),(7,3,7):}]=[0,0,0]`, then the value of `3/omega^(a) + 1/omega^(b) + 1/omega^( c)` is equal to

A

`-2`

B

2

C

3

D

`-3`

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A
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