If $U=\{a, b, c, d, e, f, g, h\},$ find the complements of the following sets:
$A=\{a, b, c\}$
If $A$ and $B$ be any two sets, then $(A \cap B)'$ is equal to
Let $U=\{1,2,3,4,5,6,7,8,9\}, A=\{1,2,3,4\}, B=\{2,4,6,8\}$ and $C=\{3,4,5,6\} .$ Find
$\left(A^{\prime}\right)^{\prime}$
Taking the set of natural numbers as the universal set, write down the complements of the following sets:
$\{ x:x$ is a perfect square $\} $
If $A$ and $B$ are two sets, then $A \cap (A \cup B)'$ is equal to