A graphing calculator or graphing software is required to plot these functions. Graphing the functions manually requires creating a table as shown below.
For the sake of brevity, only a few points are shown in the table. For the plot shown below, the spacing in t/π is 0.05 instead of 0.5.
I am not sure on how to do this however here is a link with information thst will be able to help you around this subject.i hope this helps https://www.bbc.com/bitesize/guides/z8k887h/revision/1