Let's tell and write the correct answers in the blank spaces. a) If N = {11, 12 ,13, 14), n (N) =
b) If S = {1, 4, 9, ... 49), n (S)
c) If V = {i}, subsets of V are
and its subset is
and
d)if A={teachers} and B={mathematics teachers},then universal set is and its subset is