HEY
I have no idea what to do.. anyoen doing this course knows when the payments are due.. how we pay.. where we pay and EVERYTHING?
Cause i know nothing :(
z to the power of 5 = 0
so z to the power of 4 is the conjugate of z to the power of 3..
i don't get why z3 + z3conjugate = 2cos(4pi/5)
cause how does cos(-4pi/5) + cos(4pi/5) = 2cos(4pi/5)