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
$B^{\prime}$
Fill in the blanks to make each of the following a true statement :
$\varnothing^ {\prime}\cap A$
The shaded region in venn-diagram can be represented by which of the following ?
Taking the set of natural numbers as the universal set, write down the complements of the following sets:
$\{ x:x$ is a prime number $\} $
Let $A$ and $B$ be two sets then $(A \cup B)' \cup (A' \cap B)$ is equal to