U = {s, p,l, e, n, d, o, u, r}, H = {s, p, e, n, d) and K = {p, o, u, r}. Find:
(a) H U K
(b) H n K
(c) H' n K'
(d) H'U K'
(e) (H U K)'
(f) (H n K)'​