Originally Posted by

**AAM** Thankyou! :-)

But....

"I solved your problem when . However, it still works for where because the root is still a primitive root. But if the root is not a primitive root then the problem is even easier! Because say we had , then this is a sixth root of unity and you can apply the same methods as I used above. Thus, if it is not a primitive root of unity then the problem because even easier."

I still don't understand this though! :-s

Is there any chance you could please give me a model solution for that question, taking into account that the question doesn't say the nth root is primitive?

Many, many, many thanks. :-)