Let $A$ and $B$ be two sets in the universal set. Then $A - B$ equals
Let $A$ and $B$ be two sets in the universal set. Then $A - B$ equals
- A
$A \cap {B^c}$
- B
${A^c} \cap B$
- C
$A \cap B$
- D
None of these
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If $n(A) = 3$ and $n(B) = 6$ and $A \subseteq B$. Then the number of elements in $A \cap B$ is equal to
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