Show instructions used and steps

b. Write a MATLAB function that will generate a finite-length sinusoid. The function wi!! need a total of five input arguments: three for the parameters and two more to the first and last n index of the finite-length signal. The function should return a column vector that contains the values of the sinusoid. Test this function by plotting the results for various choices of the input parameters. In particular, show how to generate the sign 2sin(rn/11) for -20 s s20. al c. Modification: Rewrite the function in part (b) to return two arguments: a vecior of indices over the range of n, and the values of the signal