Set Theory Flashcards
If A = Ø, then the order of P(A) is
1
If a class of 50 pupils, 17 choose cold drink, 42 choose hot drink and each pupil choose one of the drinks. How many pupils choose both the drinks?
9
If A = {1,5}, B={2,4,6} and C={0,2,4,5,6}
Which of the following may be considered as universal sets for all the three sets A,B,C?
{0,1,2,3,4,5,6,7,8,9,10}
If n(A) = 11 , n(B)=23 , n(AB)=30 then n(A u B) is
4
If A and B are finite sets, AB is
(A-B) U (B-A)
If n(A)=p, n(B)=q and A n B = Ø, then n(A u B) is?
p+q
Which of the following operations is not commutative?
Difference of sets
The set of rich people of the society is
Not a well-defined collection
Which of the following is correct for (AuB) ’ ?
A’nB’
If M and N are two sets, then M n (M u B)’
Ø
If A={1,2,8} then the number of subsets of A is?
2 to the power three which is 8.
If A,B,C be three sets such that A B = AC and AB = AC, then
B = C
If AnB=A and AnB=B, then
A is a subset of B
If A = {a,b}, then Power Set of A is
{Ø, {a,b}, {a}, {b}}
The set {x; x is the prime number can be written as x <= 10}
{2,3,5,7}