If $A, B, C$ are three sets, then $A \cap (B \cup C)$ is equal to
$(A \cup B) \cap (A - C)$
$(A \cap B) \cup (A \cap C)$
$(A \cup B) \cup (A \cup C)$
None of these
If $A, B$ and $C$ are three sets such that $A \cap B = A \cap C$ and $A \cup B = A \cup C$ then
Let $A =\{1,2,3,4,5,6,7\}$ and $B =\{3,6,7,9\}$. Then the number of elements in the set $\{ C \subseteq A : C \cap B \neq \phi\}$ is
Find the union of each of the following pairs of sets :
$A=\{a, e, i, o, u\} B=\{a, b, c\}$
State whether each of the following statement is true or false. Justify you answer.
$\{2,6,10\}$ and $\{3,7,11\}$ are disjoint sets.
If $A$ and $B$ are any two sets, then $A \cap (A \cup B)$ is equal to