Let $A$ and $B$ be two sets then $(A \cup B)' \cup (A' \cap B)$ is equal to

- A
$A'$

- B
$A$

- C
$B'$

- D
None of these

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 given sets, then $A \cap {(A \cap B)^c}$ is equal to

If $U=\{a, b, c, d, e, f, g, h\},$ find the complements of the following sets:

$C=\{a, c, e, g\}$

If $U=\{a, b, c, d, e, f, g, h\},$ find the complements of the following sets:

$B=\{d, e, f, g\}$

If $U=\{a, b, c, d, e, f, g, h\},$ find the complements of the following sets:

$A=\{a, b, c\}$