We are going to calculate the largest value x* which is a point of intersection for the functions f1(x) = sin(1 x)e –x/3 and f2(x) = 1/15 22. a) write the problem of finding 2* as the solution of a nonlinear equation f(x) = 0. f(x) = your response correct response no answer sin(pi*x)*exp(-1/3*x)-1/15*x^2 grade: 0/1.0 b) either create an anonymous function myf or a matlab function m-file myf. m to define your function in (a). your function must accept a vector of inputs, producing a vector of the same size as output. c) create a vector z of 501 equally spaced points on (0,5). correct response your response no answer z =linspace(0,5,501) * grade: 0/1.0 d) plot your function f over 0,5) including a grid. from the plot, give a starting point 20 (with at most 2 significant figures) for an interative method to find the largest value of z*. 20 = your response correct response 2.5+0.5 grade: 0/1.0