State which of the following sets are finite or infinite :
$\{ x:x \in N$ and $2x - 1 = 0\} $
List all the subsets of the set $\{-1,0,1\}.$
Let $A=\{1,2,3,4,5,6\} .$ Insert the appropriate symbol $\in$ or $\notin$ in the blank spaces:
$ 4\, ......... \, A $
Write the set $\{ x:x$ is a positive integer and ${x^2} < 40\} $ in the roster form.
Let $A=\{1,2,3,4,5,6\} .$ Insert the appropriate symbol $\in$ or $\notin$ in the blank spaces:
$10 \, .........\, A $