write codes without explanation

Question No. 1 1. Your code must be written in a single script file. (-1 point if skipped) 2. Generate a vector in MATLAB representing the time interval from 0 to 4 , with a sampling rate of 150 samples per unit of time. (1 point) 3. Generate two sinusoidal signals in with the following frequencies: 1 and 2, amplitudes of 2 and 1 respectively. ( 2 points) 4. Add the two sinusoids. (1 point) 5. Show all the signals, each in a separate subplot, using the command that draws continuous waves. Use subplot command in the following manner: (1 point)