If A = {1,2,3,4}, B = {4,5,6,7}, then A∩B is
{1,2,3,4}
{6,7}
{1,2}
{4}
If A and B are disjoint, then n (AB) is equal to.
n(A)
n(B)
n(A) + n (B)
n (A). n(B)
If A is any set, then.
A A' = φ
A A' = U
A∩A' = U
None f these
If f = {(6,3), (8,4), (5,3), (-1, 6)} then the pre-image of 3 are.
S and -1
6 and 8
8 and -1
6 and 5
A = {p,q,r,s} , B = {r,s,t.u}, then A / B is.
{p,q}
{t,u}
{r,s}
{p,q,r,s}
If A = {1,2,3} and B = z{1,3,5,7} then A B.
{1,3,5,7}
{1,2,3,5,7}
{1,2,3,7}
None of these
Given A = {1,2,3}, B = {3,4}, C = {4,5,6}, then A U (B∩C) is.
{3}
(1,2,3,4}
{1,2,4,5}
{1,2,3,4,5,6}
If A,B,C are three sets, then A∩ (BC) is equal to.
(AB) ∩ (AC)
(A∩B) (A∩C)
AB) (AC)
If A = {1,2,3,4}, B = {4,5,6,7}, then A - B =
{1,2,3}
{5,6,7}
If A, B and C are any three sets, then A× (BUC) is equal to
(A×B) U (A × C)
(AUB) × (AUC)
(A × B) ∩ (A × C)
