If $A$ and $B$ be any two sets, then $(A \cap B)'$ is equal to
$A' \cap {\rm B}'$
$A' \cup B'$
$A \cap B$
$A \cup B$
Taking the set of natural numbers as the universal set, write down the complements of the following sets:
$\{ x:x$ is a positive multiple of $3\} $
If $U=\{a, b, c, d, e, f, g, h\},$ find the complements of the following sets:
$A=\{a, b, c\}$
If $A$ is any set, then
Taking the set of natural numbers as the universal set, write down the complements of the following sets:
$\{ x:x$ is an odd natural number $\} $
If $U =\{1,2,3,4,5,6,7,8,9\}, A =\{2,4,6,8\}$ and $B =\{2,3,5,7\} .$ Verify that
$(A \cup B)^{\prime}=A^{\prime} \cap B^{\prime}$