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If 1, omega, omega^(2) are the cube root...

If `1`, `omega`, `omega^(2)` are the cube roots of unity then the values
`((a+b omega+c omega^(2))/(c+a omega+b omega^(2)))`+`((a+b omega+c omega^(2))/(b+c omega+a omega^(2)))`=
(A) `1`
(B) `0`
(C) `-1`
(D) None of these

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