a) Solve cos x = 2xy and cos xy = 2x to 5 decimal places with an initial guess of x0 = 0.5 and yo= 0.5 using proper method. (90 Point) ATTENTION: Please add a comment line to each line of code explaining what that line does. Hint: You can take tolerance value as 0.0001 if you need. b) Explain why you chose the method you will use. (10 Point)