State which of the following sets are finite or infinite :
$\{ x:x \in N$ and $x$ is odd $\} $
Since there are infinite number of odd numbers, hence, the given set is infinite.
Write the following as intervals :
$\{ x:x \in R,0\, \le \,x\, < \,7\} $
Which of the following are sets ? Justify your answer.
A collection of novels written by the writer Munshi Prem Chand.
Make correct statements by filling in the symbols $\subset$ or $ \not\subset $ in the blank spaces:
$\{ x:x$ is a triangle in a plane $\} \ldots \{ x:x$ is a rectangle in the plane $\} $
If a set $A$ has $n$ elements, then the total number of subsets of $A$ is
List all the elements of the following sers :
$D = \{ x:x$ is a letter in the word $"\mathrm{LOYAL}" $ $\} $
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