Let $A$ and $B$ be two sets. Then
$A \cup B \subseteq A \cap B$
$A \cap B \subseteq A \cup B$
$A \cap B = A \cup B$
None of these
State whether each of the following statement is true or false. Justify you answer.
$\{2,3,4,5\}$ and $\{3,6\}$ are disjoint sets.
Find the union of each of the following pairs of sets :
$A=\{a, e, i, o, u\} B=\{a, b, c\}$
If $A, B$ and $C$ are non-empty sets, then $(A -B) \cup (B -A)$ equals
Find the union of each of the following pairs of sets :
$A=\{1,2,3\}, B=\varnothing$
Given the sets $A = \{ 1,\,2,\,3\} ,\,B = \{ 3,4\} , C = \{4, 5, 6\}$, then $A \cup (B \cap C)$ is