Given A = {a,b,c} B = {a,c,d} then A ∩ B is _______ .
{a,b,c,d}
{a,b,c}
{a,c,d }
{ a , c}
If n (A U B) = 110 ,n (A ∩ B ) = 32 , then n (A) + n (B) is equal to _____________ .
6
30
142
78
Sets having same number of elements are called _____________ .
Overlapping sets
Disjoint sets
Equivalent sets
Equal sets
If A = {2,3,5} ; B = {1,3,5} then A-B is __________ .
{2}
{}
{1,2}
none of these
Let A={2,3,4,6},B = {5,7,8} and C={2,7,8,9}.Find (A U B U C) ?
{ 2,3,4,5,7,8}
{2,3,4,5,6,7,8}
{2,3,4,5,6,7,8,9}
{2,5,7,8,9}
If = {1,2,3,4,5,6,7,8},A = {1,2,3,4} , B={2,4,5,7} and C={2,4,6,8}
Find B1.
{2,4,5,7}
{2,4,6,8}
{1,3,6,8}
{1,3,4,6,8}
The set with Cardinal number o is _______.
null set
Finite set
Infinite set
Subset
A,B and C are three sets ,n(A) = 14,n(C)=13,n(AUBUC) = 28,n(A)=n(B),n(A∩B)=7 n(A∩C)=3 Find n (A∩B∩C)
1
2
3
28
Let the universal set be write A = {x:x≥15}
{1,2,3,4,5,10,15}
{15,16,17,18,19,20,21,22,23,24}
{10,11,12,13,14}
{15}
Let ={1,2,3.....12} and A = {4,6,8,10,12}
A U A'= ______.
ø
{1,2,3}
{5,7,11,19}