Grade 9Algebra
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)
1 Answer
Arun
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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