Question: for 3D how is the answer D? Question 3 Let w be the principal cube root of unity. Simplify the following. 1) (1 + W-1)

for 3D how is the answer D?

Question 3 Let w be the principal cube root of unity. Simplify the following. 1) (1 + W-1) (1 + w- 2 ) ( b) ( 1 - w ) ( 1, - w2 ) ( 1 - wh ) ( 1 - wb ) at bw + ew ? e 1 + w 1+ w2 b + ew + aw2

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