If ω is a complex cube root of unity then \sum^{9}_{r=1} r (r + 1 - ω) (r + 1 - \omega^2) =

AP EAMCET Engineering 20 Apr 2019 Shift 1 Paper

Section: Mathematics

Question : 10 of 160

Marks: +1, -0

If ω is a complex cube root of unity then

r=1

r (r + 1 - ω) (r + 1 - ω2) =

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