Mark the tick against the correct answer in the following:
Question:

Mark the tick against the correct answer in the following:

If $\omega$ is a complex cube root of unity then the value of $\left|\begin{array}{ccc}1 & \omega & 1+\omega \\ 1+\omega & 1 & \omega \\ \omega & 1+\omega & 1\end{array}\right|$ is

A. 2

B. 4

C. 0

D. $-3$

Solution:

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