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प्रश्न
Choose the correct alternative:
If ω ≠ 1 is a cubic root of unity and `|(1, 1, 1),(1, - omega^2 - 1, omega^2),(1, omega^2, omega^7)|` = 3k, then k is equal to
पर्याय
1
– 1
`sqrt(3)"i"`
`- sqrt(3)"i"`
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उत्तर
`- sqrt(3)"i"`
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