Fill in the blanks:
(i) If x is not a member of the set A, then symbolically we write it as ……..
(ii) Each element of a set is listed once and only ……….. repetitions are removed.
(iii) A set that contains a limited number of different elements is called a ……… set.
(iv) Two finite sets are called equivalent if and only if they have ………. a number of elements.
Solution:
State whether the following statements are true (T) or false (F):
(i) A collection of books is a set.
(ii) If X = {letters of the word PRINCIPAL}, then the cardinal number of set X is 9.
(iii) If P = {letters of the word AHMEDABAD}, then n(P) = 6.
(iv) If A is any set, then A ⊂ A.
(v) An empty set is a subset of every set.
(vi) If set A = {0}, then n{A} = 0.
(vii) If A and B are two sets such that A ⇔ B, then A = B.
Solution:
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