Which of the following are examples of the null set
$\{ x:x$ is a natural numbers, $x\, < \,5$ and $x\, > \,7\} $
The number of non-empty subsets of the set $\{1, 2, 3, 4\}$ is
Write the following sets in the set-builder form :
${\rm{\{ 5,25,125,625\} }}$
Write the following sets in the set-builder form :
${\rm{\{ 2,4,8,16,32\} }}$
Examine whether the following statements are true or false :
$\{ 1,2,3\} \subset \{ 1,3,5\} $