3) Apply the MATLAB built-in function [rootest, fval]=fzero (func, initial guess) to compute the roots for the following functions. This function runs a relatively stable algorithm that uses a combination of root-finding procedures discussed in class. a) In a script file, compute the root of f(x)-ex-1-1 using fzero with initial guesses x and xo 5+10-10. For each initial guess, show the values of rootest and fval, and use these to compute and show the forward and backward absolute errors for each initial guess, using the )enclosed by apostrophes. The