e & MatLab expression that can calculate e (sin(xy)-cos(xy)) 22. Write a Matlab expression that can calculate (6x + 3y)-1/x 23. Write a MatLab expression that can calculate 2sin(e3x) 24. Write a MatLab expression that can calculate 2(x +1)cos2x 25. Write a MatLab command to generate a vector z that starts from 0, ends at 3000, and counts by 3 26. Write a command to create a vector with 80 evenly-spaced elements starting at 0 and ending at /2. Consider the following arrays in MatLab's workspace. 1 0 0 0 I and-E : 7 8 9 1 Write Matiab eommands to retrieve the following sub-arrays from Wand Z ia question 27, 28 and 29. 28,2 9 12 9 0 Page 3 of 4