Matlab Question. Please explain well.

We would like to determine the approximate value c)dx using 'n' rectangles (a) Write a MATLAB function defined below: function (appInteg]=my IntegWithFuncHandle (func, limVec, n) Function file: myIntegWithFuncHandle.m Purpose: % Calculate approximate integral of function specified in func % between the lower/upper limits specified in limVec using n % rectangles Record of revisions (Date | Programmer | Change): Date Name | Original program Inputs: % func - function handle defined as [fx, dfx]=func_name (x) for calculating f(x) and f'(x) & limvec - (1x2) vector containing limits of integral; limVec(1) is lower limit and limvec (2) is upper limit. n (1x1) number of rectangles $outputs: $appInteg - (1x1) approximate value of integral (b) Using function handles to myri and myE2 as inputs for myIntegwithFuncHandle, calculate the approximate value of ( f(x)dx for f(x)=x*e*?* and f(x) = 7 sin(x)e~* - 1 using 10, 100 and 1000 rectangles