Given an angle with measure \displaystyle 3π4\displaystyle \frac{{{3}\pi}}{{4}}\displaystyle find the following.

Find a coterminal angle between 2π\displaystyle -{2}\pi and 0\displaystyle {0}.  

Find a coterminal angle between 2π\displaystyle {2}\pi and 4π\displaystyle {4}\pi.