Find the roots (real or complex) of the equation 2a2(1+cosx)−(1+a2+b2)2=0,a,b∈R ATTEMPT: Solving for x, we...
Find the roots (real or complex) of the equation
ATTEMPT: Solving for x, we arrived with
However, I got stuck because of the required domain of which is [-1,1] while the expression does not possibly be within this interval for arbitrary values of a and b. Sometimes I am tempted to say that no general solution exists even in C. Can anyone help me out?