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Manipal Entrance Test 2014 Math Paper

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Question : 2 of 80

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If 1,ω,ω2,.....ωn−1 are n,nth roots of unity, thenthe value of (9−ω).(9−ω2).(9−ω3)...(9−ωn−1) will be

9n+1
8
9n−1
9n−1
8
9n+1

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