write a matlab script that:

Exercise 3 (Chirps): Pure tones or sinusoids are not very interesting to listen to. Mod- ulation and other techniques are used to generate more interesting sounds. Chirps, which are sinusoids with time-varying frequency, are some of those more interesting sounds. For instance, the following is a chirp signal: x(t) = Acos (24 + s(t)) . . Let A = 1, 2, and s(t) = t2/4. Use MATLAB to plot this signal for 0 t 40 seconds in the steps of 0.05 seconds. Use the sound function to listen to the signal . Let A = 1, Q, = 2, and s(t) = _2 sin(t). Use MATLAB to plot this signal for 0St 40 seconds in the steps of 0.05 seconds. Use the sound function to listen to the signal