If w ≠1 is a cube root of unity, then 1 , ω , ω2

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are vertices of an equilateral triangle

lie on a straight line

lie on a circle of radius lie on a circle of radius 3/2

none of these

answer is A.

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Detailed Solution

|1−ω|=ω−ω2=ω2−1Alternatively plot the points on an argand diagram

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