Answers

The Brainliest Answer!
2014-04-21T14:32:33+05:30
For cube root of unity
1+ω=-ω²
therefore
(1+ω)^7=(-ω²)^7=-ω^14
as ω³=1
-ω^12(ω²)=-ω²=-(1+ω)=-ω-1
therefore A=-1,B=-1

1 5 1
2014-04-21T14:41:23+05:30
The answerr is  a= 1 and b = -1.
0