Question

If w!=1 is a cubic root of unity and (1+W) = A+Bw, then find A and B.​

Answer 1

Answer:

Option A

Step-by-step explanation:

(1 + w)7 = A + Bw

(-w2)7 = A + Bw

-w14 = A + Bw

-w2 = A + Bw

1 + w = A + Bw

The correct option is A.