Help please with mathlab. Im a new student. Thanks

Harmonic motion plot. Write a program, plotharmonic.m, that plots harmonic motion of x in time, as described by the following equation: x(t) = A cos(omega +) In this equation, A is the amplitude of the motion, omega is the angular frequency, and is the phase shift, all of which arc constants in the equation. Run the program with the values A = 2, and = pi 2. Pick a value for the period T that is related to co by the relation omega = 2pi T. Also pick a good value for the final time Tf that sets the range of t = [0, ...Tf] Probabilities for multiple dice. Extend the previous problem to calculate P(N) for any number Nd > 1 of dice