from math im por sin ( print ( cos (xprint (yif we need many functions we can do like this from math im por sin ( print ( cos (xprint (ywe can also use this alternative im po rt math math print (ywe can also write it like this im po rt math mt mt print ( [end of examplethere are advantages and disadvantages with the different approaches in your program you may need to use functions from many different modules or packages if you import the whole module instead of just the function(syou need you use more of the computer memory very often we also need to import and use multiple libraries where the different libraries have some functions with the same name but different use other useful modules in the python standard library are statistics (where you have functions like mean()stdev()etc for more information about the functions in the python standard librarysee