Question
If ω is a cube root of unity and Δ = ∣∣∣12ωωω2∣∣∣, then Δ2 is equal to
Answer: Option D
:
D
Since Δ=ω2−2ω2=−ω2. Therefore Δ2=ω4=ω.
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:
D
Since Δ=ω2−2ω2=−ω2. Therefore Δ2=ω4=ω.
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