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If x=a+b, y=a alpha + b beta and z= alph...

If `x=a+b, y=a alpha + b beta and z= alpha beta + b alpha`, where
`alpha and beta` are complex cube roots of unity, then xyz=

A

`a^(2)+b^(2)`

B

`a^(3)+b^(3)`

C

`a^(3)b^(3)`

D

`a^(3)-b^(3)`

Text Solution

Verified by Experts

The correct Answer is:
B
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