Please explain to me how to do the equations for (a) and (b) below. Then I am interested in doing the (c) and (d) equations by myself. From the information given, find the quadrant in which the terminal point determined by t lies. Input I, II, III, or IV.(a) sin(t)<0 and cos(t)<0 , quadrant__________ ;(b) sin(t)>0 and cos(t)<0 , quadrant__________ ;