Question

if 1 w w 2 are cube roots of unity prove the following

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

Knowing the basic identities

ω3=1...(a)ω2+ω+1=0...(b)

Following can be derived from (b)

1+ω2=−ω1+ω=−ω2

Now put them in your question

=(1+ω2−w)(1−ω2+w)

=(−ω−ω)(−ω2−ω2)

=(−2ω)(−2ω2)

=4ω3

=4(1)

=4

MARK AS BRAINLIEST