Do you have any idea to simplify and find a general solution for it.
Let z=x+i y be a complex number. Substitute cos(5x), cos(x), sin(4x) with z component and solve for z...then arguments of z solutions are solutions to f(x) as follows:
f(z) simplifies to:
z is not 0
Arguments of z are as follows:
Last edited by MaxJasper; August 31st 2012 at 11:57 AM.