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On any given are of positive length on t...

On any given are of positive length on the unit circle |z|=1 in the complex plane,

A

there need not be any root of unity

B

there lies exactly one root of unity

C

there are more than one but finitely many roots of unity

D

there are infinitely many roots of unity

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KVPY PREVIOUS YEAR-SOLVED PAPER 2018-EXAMPLE
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