If $A$ and $B$ be any two sets, then $(A \cap B)'$ is equal to
$A' \cap {\rm B}'$
$A' \cup B'$
$A \cap B$
$A \cup B$
If $U=\{a, b, c, d, e, f, g, h\},$ find the complements of the following sets:
$B=\{d, e, f, g\}$
Let $A$ and $B$ be two sets then $(A \cup B)' \cup (A' \cap B)$ is equal to
Draw appropriate Venn diagram for each of the following:
$A^{\prime} \cap B^{\prime}$
Taking the set of natural numbers as the universal set, write down the complements of the following sets:
$\{x: x+5=8\}$
Fill in the blanks to make each of the following a true statement :
${{\mathop{\rm U}\nolimits} ^\prime } \cap A = \ldots $