(20 points) Define two variables: alpha = 51/8, and beta = 7/8. Using these variables to show that the following trigonometric identity is correct by calculating the values of the left and right sides of the equation. Write the MATLAB code in a Script file, called hw0102.m and then run it on Command Window. Show the Script file and the result in the Command Window. sin a cos = [sin(a - b)+sin(a+b)]