If $A, B$ and $C$ are any three sets, then $A -(B \cup C)$ is equal to
$(A -B) \cup (A -C)$
$(A -B) \cap (A -C)$
$(A -B) \cup C$
$(A -B) \cap C$
If $A$ and $B$ are two sets, then $A \cup B = A \cap B$ iff
Let $A=\{1,2,3,4,5,6,7,8,9,10\}$ and $B=\{2,3,5,7\} .$ Find $A \cap B$ and hence show that $A \cap B = B$
If $A$ and $B$ are disjoint, then $n(A \cup B)$ is equal to
Consider the sets $X$ and $Y$ of $X = \{ $ Ram , Geeta, Akbar $\} $ and $Y = \{ $ Geeta, David, Ashok $\} $ Find $X \cap Y$
If $A=\{3,6,9,12,15,18,21\}, B=\{4,8,12,16,20\},$ $C=\{2,4,6,8,10,12,14,16\}, D=\{5,10,15,20\} ;$ find
$D-B$