Steam Is Coming Out Of My Head Trying To Solve This Problem! Urgent Help Please!

Dear Everyone,

The problem is:

A pair of figure skater graphed part of their routine on a grid. The male skater's path is represented by the equation m(x)=3sin1/2x and the female skater's path is represented by the equation f(x)= -2cosx. On the accompanying rid, sketch both paths and state how many paths of the skaters intersect between x=0 and x=4pie(3.14). In additon to answering the question I need to know the range or scale factor for the x axis and y axis.