Originally Posted by M670 I am really not doing well on this question find all the roots of the polynomial I know there is going to be 5 roots and 2 of them should be -i and +i but i can't figure out the rest? In one circle there will be five roots, all evenly spaced around a circle, so having the same magnitude and separated by the same angle
So the first of these roots is , and the rest are separated by an angle of , so in the region we have
Of course, all multiples of will also work.
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Originally Posted by M670 I got the point of thus is one root
but finding the other with the roots I don't understand how this is going to help me.
The lightbulb didn't go off yet Oops! I left the "i" out in my equation. Sorry about that. It should have been
C'mon. How do you solve the equation ?
So when you have
where do you go from here?
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