Let S = {w, x, y, z} and T = {I, 2, 3, 4}, and define a: S -> T and f3: S -> T bya(w) = 2, a(x) = 4, aryl = 1, a(z) = 2 and f3(w) = 4, f3(x) = 2, f3(y) = 3, f3(z) = 1.(a) Is a one-to-one? Is f3 one-to-one? Is a onto? Is f3 onto?(b) Let A = {w, y} and B = {x, y,z}. Determine each of the following subsets ofT: alA),f3(B), alA n B), f3(A U B).

▯ Cindy Sherman’s “horizontals” Trying to emulate cinematic qualities and center-folds Extreme close-ups, giving intimacy Implied violence in all her photographs ▯ Nikki S. Lee: Subcultures in Manhattan and performance art All time stamped Point and shoot camera Look like authentic amateur shots that...