How many non-real solutions are there to the equation
What is the product of the fourth roots of unity?
How many of the 12th roots of unity are not 4th roots of unity?
Let In other words, are the third roots of unity. Further suppose that you have a polynomial for some integer Which of the following is equal to
How many of the 5th roots of unity have positive real part?
Note:The real part of a complex number that can be written as for real numbers and is .