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Question

If ω is a complex cube root of unity, then the determinant ∣ ∣22ωω2111110∣ ∣=

A
\N
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B
1
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C
-1
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D
None of these
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Solution

The correct option is A \N
Δ∣ ∣22ωω2111110∣ ∣=∣ ∣2+2ω+2ω22ωω21+121111010∣ ∣(C1C1+C22C3)=∣ ∣02ωω2011010∣ ∣=0.

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