The set $A = \{ x:x \in R,\,{x^2} = 16$ and $2x = 6\} $ equals
$\phi $
$\{14, 3, 4\}$
$\{3\}$
$\{4\}$
The number of non-empty subsets of the set $\{1, 2, 3, 4\}$ is
If $A$ and $B$ are any two non empty sets and $A$ is proper subset of $B$. If $n(A) = 4$, then minimum possible value of $n(A \Delta B)$ is (where $\Delta$ denotes symmetric difference of set $A$ and set $B$)
Which of the following are examples of the null set
Set of even prime numbers
Which of the following are sets ? Justify your answer.
The collection of all the months of a year beginning with the letter $\mathrm{J}.$
State which of the following sets are finite or infinite :
$\{ x:x \in N$ and ${x^2} = 4\} $