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Let u) = cos 2? + isin 2? be a cube root of unity. Determine the value of (a) (1+ M3; (b) (1+ Zoo |

Let u) = cos 2?\" + isin 2?\" be a cube root of unity. Determine the value of (a) (1+ M3; (b) (1+ Zoo | w2)(1 | w | 2w2)

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