a) Using the Matlab utility ezplot, graphically show all real roots of the system of non-linear equations (x, y) = sin(xy)42 2ex = 0 4 b) Determine the roots for which x has the smallest and largest value to at least 8 significant figures using both the Newton-Raphson method for simultaneous equations and fixed-point iteration. Please submit the following: 1D, A grash which cleanly shows all cal rots ofthe squations 2) A write up showing the equations used in your program(s) to find the roots including the starting values of x and y used to find each root. 3) A printed copy of your program(s). 4) Printed output from your program(s)