need the code of the following for my matlab exercise

in M ATLAB and listen to it with the soundsc() command. 1 The first two lines of code in part 2.2(d) create a vector xx of values of a 2.5 Hz sinusoid. The frequency of your sinusoidal tone should be 2000 Hz and its duration should be 0.9 sec. Use a sampling rate (fs) equal to 11025 samples/sec. The sampling rate dictates the time interval between time points, so the time-vector should be defined as follows: tt = 0:(1/fs):dur; where fs is the desired sampling rate and dur is the desired duration (in seconds). Read the online help for both sound() and soundsc() to get more information on using this command. What is the length (number of samples) of your tt vector?