CAn anyone help? I can get to the point where de moivres theorem comes in but I dont understand how to do this...
So the question is;
Express
in the form
and then express
in the form a + ib
SO i can do this part
SO BY DE MOIVRES THEOREM
This is where I can get up to, but what needs to happen here??
in my notes this happens..but I dont undertand it...
Then you plug into the formula r(cos(theta)+isin(theta)