Question

If ω is an imaginary cube root of unity, then (1+ω - ω²)⁷ equals:​

Answer 1

Answer:

-128w^2

Explanation:

(1+w-w^2) ^7

(-w^2 - w^2)^7

= (-2w^2)^7

= (-128)w^14

(-128w^2) (w^3=1)