Please Answer in MATLAB:

Sketch the following signals. For each signal, specify if it is causalon-causal, periodicon-periodic, odd/even. If the signal is periodic, specify its period. a) x(t)=2sin(2t) b) x(t)={3e2t,0,t0t0 Question 2 2.1 Without using MATLAB, determine if the following signals are periodic. If so, specify its fundamental period. a) x(t)=cos(5t) b) x[n]=cos(5n) c) x[n]=cos(52n) d) x[n]=cos(54n) e) x[n]=cos(252n) 2.2 Next, use MATLAB to validate your results by plotting the signals with appropriate scales and labels