Saved Bookmarks
| 1. |
If ω ≠ 1 is a cubic root of unity and \(\begin{vmatrix} 1&1&1\\1&-ω^2-1&ω^2\\1& ω^2&ω^7\end{vmatrix}\)= 3k, then k is equal to _______.(a) 1 (b) -l (c) √3i(d) -√3i |
|
Answer» The correct answer is : (d) -√3i |
|