Exercise 5b question number 12 Every set has a proper subset.
If A has n elements, then has subsets.
8. Let A be the set of letters in the word, 'seed'. Find
(iii) nurnber of subsets of A.
(ii) n(A)
(it') number of proper subsets of
9. all possible subsets of each of the following sets :
(ii) B = 12, 3, 81
(iii) c = 10,
O. Find the power set of each of the following sets :
(ii) B-17,91
(iii) c = 12,
Let A = {I, Find the power set of A.
Let = : X E N, X < 50), A = {X : x2 S), B = lx : x = n2, n and C = factor of 361.
List elements of each of the sets A, B and C. Also, state whether each of the following statement
is true or false:
RATIONS ON SETS
(iii) A + B
(v) n(A) < n(C)
uncon oftwo sets A and B, denoted by A U B (recd as 'A union B') is the set of dl those e
qtwhwh is either in A or in B or in both A and B.
s, AUB=LrlxEAorxEB).