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If x=p+q,y=pomega+q omega^(2) and z=p om...

If `x=p+q,y=pomega+q omega^(2)` and `z=p omega^(2)+q omega`, where `omega` is a complex cube root of unity, then xyz equals to

A

`p^(3)+q^(3)`

B

`p^(2)-pq+q^(3)`

C

`1+p^(3)+q^(3)`

D

`p^(3)-q^(3)`

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