What is the cardinal number of set X = {–5, –4, 4, 5}?
3
4
5
6
What is the cardinal number of set Y = {x : x ∈ W, 0 < x ≤ 5}?
7
9
What is the cardinal number of set A = {x : x is a letter of the word APPRECIATE}?
8
What is the cardinal number of set B = {x : x = 3y – 2, y ∈ N, y < 3}?
2
What is the number of proper subsets of {0, 2, 4}?
What is the number of proper subsets of {a, b, c, d, e}?
41
51
31
52
If n(X) = 35, n(Y) = 42 and n(X ∩ Y) = 9, what is the value of n(X ∪ Y)?
68
86
76
66
If n(X) = 35, n(Y) = 42 and n(X ∩ Y) = 9, what is the value of n(X – Y)?
62
28
26
24
If L = {10, 20, 30, 40} and M = {4, 8, 12, 16, 20, 24}, what is the value of L – M?
{20, 24, 40}
{10, 32, 44}
{10, 30, 40}
{10, 36, 44}
If A = {10, 20, 30, 40} and B = {5, 10, 15, 20}, type all the members of A – B.
If n(X) = 38, n(Y) = 35 and n(X ∩ Y) = 8, type the value of n(X – Y).
If n(X) = 35, n(Y) = 30 and n(X ∩ Y) = 9, type the value of n(X ∪ Y).
Type the total number of proper subsets of {0, 1, 2, 4}.
Type the cardinal number of X = {–5, –4, 4, 5, 6, 7, 8}.
