4. (12 points] Setting things up Use set builder notation to represent the following sets. The set of points on the line 5x + 2 = y Sn (the intersection of two sets S and T) - POW(S) (the power set of S) show that {4": n e Z} {2:n e Z}. To do so explain why any element of the left hand side must be an element of the right side. - Show that {4" : ne Z} + {2" : ne Z} by giving an element of one of the sets that cannot be in the other set