7. Write a MATLAB program to plot the cross-correlation of the two given sequence signals and attach the source code as well as output. x = [1 2 3 4 5]; h =[4 3 21 5];

5. Write a MATLAB program to plot the autocorrelation of the given sequence signal and attach the source code as well as output. inpSignal =[1 2 3 4 5 6 7]

4. Write a Matlab program to plot the trigonometric function given below:  y(t) = 8cos3(t) - 3sin3(t) + 7sin(t)cos(t). Attach code and plot screenshot.