1. Using MATLAB, plot a sine function, sin(wt), where w is the frequency of oscillation. Do the followings. (1) Create a time vector, t, from 0 to 5s with a time interval of 0.2s. (2) Create an output vector of sin(3t) using the time vector, t, created in (1). (3) Create another time vector from 0 to 5s with a time interval of 0.01s. (4) Create another output vector of sin(3t) using the time vector created in (3). (5) Plot the two output vectors created in (2) and (4) together on the same plot. Note: Present both your MATLAB code and plots.