If 1, w, $w^{2}$ are three cube roots of unity, then $(1 - w + w^{2}) (1 + w - w^{2})$ is .............

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Solution

The correct option is D
4

$(1 - w + w^{2}) (1 + w - w^{2}) = 3 - w - w^{2} = 4$

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Similar questions

If 1, w, $w^{2}$ are three cube roots of unity, then $(1 - w + w^{2}) (1 + w - w^{2})$ is .............

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