Complex Numbers And Quadratic Equations question 281

Question: If $ 1,\omega ,{{\omega }^{2}} $ are the cube roots of unity, then their product is [Karnataka CET 1999, 2001]

Options:

A) 0

B) $ \omega $

C) - 1

D) 1

Show Answer

Answer:

Correct Answer: D

Solution:

$ 1.\omega .{{\omega }^{2}}={{\omega }^{3}}=1. $