The question is about finding the limit using the fixed point rule. You can do that using the quadratic equation, not sure if that is what I should do. The question is this:
x0 = xn+1 = xn^2 -1/2 (n= 0,1,2...)
Generated by this function f(x) = x^2 - 1/2 appears to converge to a limit between -0.5 and 0. Assuming that this convergence does occur, find the value of the limit.
This question came after learning the fixed point rule, which I don't understand. If you have a link or knowledge about that; that would be useful.