Write the following intervals in set-builder form :
$\left( { - 3,0} \right)$
Consider the sets
$\phi, A=\{1,3\}, B=\{1,5,9\}, C=\{1,3,5,7,9\}$
Insert the symbol $\subset$ or $ \not\subset $ between each of the following pair of sets:
$\phi \,....\,B$
If $A = \{ 1,\,2,\,3,\,4,\,5\} ,$ then the number of proper subsets of $A$ is
The number of proper subsets of the set $\{1, 2, 3\}$ is
Write the following sets in roster form :
$A = \{ x:x$ is an integer and $ - 3 < x < 7\} $