Let n(∪) = 700, n(A) = 200, n(B) = 300 and n(A∩B) = 100 then n(A'∩B' )
400
600
300
200
Let A and B be two non empty subsets of a set x. Such that A is not a subset of B, then
A is always a subset of the complement of B
B is always a subset of A
A and B are always disjoint
A and the complement of B are always non - disjoint
The number of non - empty subsets of the set {1,2,3,4} is
15
14
16
17
If A, B, C are three sets, then An(B∪C) is equal to
(A∪B) ∩ (A∪C)
(A∩B) ∪ (A∩C)
(A∪B) ∪ (A∪C)
none of these
If A∩B = A then
A is a subset of B
B is a subset of A
A and B are disjoint sets
(A∪B) = A
If P = { x : x N and x is a prime number}, then p is
Finite
Infinite
Null set
None
If A∩B = B then
BA
A = Ø
AB
B = Ø
If f(x) = 1/x+1 g(x) = -x then gof is
-x + 1
-1/x+1
-(x + 1)
x2 - 1
If f(x) = 1/x and g(x) = x2 then fog is
x2
1/x2
1/x
x
Let A = { x: x N, 2 ≤ x ≤ 7}, ß = { x: x N, 5 ≤ x ≤ 10} Find A ∩ ß.
{5, 6, 7}
{2, 3, 4}
{8, 9, 10}
{ 3, 4, 5}
