1generate and plot a continuous-time signal and a train of

Question

Given the continuous-time cosine signal:

x (t)= A cos (2πf₀t) with fundamental frequency f₀=5 kHz and amplitude of 5V (peak-to-peak)

Question 1 : Generate and plot a continuous-time signal and a train of unit impulses using MATLAB

Question 2 : Generate samples of a given signal using a train of unit impulses using  MATLAB

Question 3 : Investigate the effect of sampling analogue signals