Let ={1,2,3 ......12} and A = {4,6,8,10,12 }
Find
{1,2,3,4,5,9,11}
{5,7,9,11}
{1,3,5,7,9,11}
{1,2,3,5,7,9,11}
Let ={1,2,3.......10} A = {2,3,5,8,10}B= {3,5,9} and C={1,2,4,8,10}A'U B' =_______ .
{1,2,4,6,7,8,10}
{1,4,6,7,9,10}
{1,2,4,6,7,8,9,10}
{1,4,6,8,10}
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 n (A U B) = 110 ,n (A ∩ B ) = 32 , then n (A) + n (B) is equal to _____________ .
6
30
142
78
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 A = {1,2,3} ; B = {2,3,5} A U B is _________ .
{1,2,3,4,5}
{1,2,3,5}
{1,2,3,2,3,5}
none of these
The disjoint sets in the following are _______ .
A={4,5,6,7} ;B = {1,2,3,4}
A = {a,b,c} ; B ={1,2,3}
A = {1,3,5} ; B = {5,3,1}
None of these
Let ={1,2,3.......10} A = {2,3,5,8,10}
B= {3,5,9} and C={1,2,4,8,10}
(A U B)1=_______ .
{1,4,6,7}
{1,3,5,7}
{1,2,3,5,9,10}
ø
If A = {2,3,5} ; B = {1,3,5} then A-B is __________ .
{2}
{}
{1,2}
Let A = { factors of 36} and B= {factors of 48}
Which of the following is correct ?
n (A U B) = n (A) + n(B) - n(A∩B)
n (A U B) = n (A) + n(B) + n(A∩B)
n (A U B) = n (A) + n(B)
n (A U B) = n (A ∩B) - n(A) - n(B)
