Determinantshard
0:00.0

Consider the matrix A=(1111ωω21ω2ω4)A = \begin{pmatrix} 1 & 1 & 1 \\ 1 & \omega & \omega^2 \\ 1 & \omega^2 & \omega^4 \end{pmatrix} where ω=ei2π3\omega = e^{i \frac{2\pi}{3}}. What is det(A)\det(A)?