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1,w,w2 are the cube roots of unity then (2-w)(2-w2)(2-w13)(2-w17)

1,w,w2 are the cube roots of unity then (2-w)(2-w2)(2-w13)(2-w17)

Grade:9

1 Answers

Arun
25750 Points
5 years ago
Dear student
 
as
w^3 = 1
and 1 + w + w^2 = 0
 
now
 
(2 – w) (2 – w^2) (2 – w^13)(2 – w^17)
 
open these bracjets by taking two and you will get answer easily
 
P.S. there are other methods too

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