Solve in Matlab: (I need the code implementation please,not the graph)

1. draw the graph of y(t)=sin(-2t-1),-2π≤ x ≤2π

2.(i) draw the graph of y(t) =3 sin(2t) + 2 cos(4t), -2≤ x ≤2

(ii) draw the graph of y(t) =3 sin(2t) - 2 cos(4t), -2≤ x ≤2

(iii) draw the graph of y(t) =3 sin(2t) *2 cos(4t), -2≤ x ≤2