State which of the following sets are finite or infinite :
$\{ x:x \in N$ and $(x - 1)(x - 2) = 0\} $
Which of the following are examples of the null set
Set of odd natural numbers divisible by $2$
Which of the following is a true statement
Which of the following are sets ? Justify your answer.
The collection of questions in this chapter.
Make correct statements by filling in the symbols $\subset$ or $ \not\subset $ in the blank spaces:
$\{ x:x$ is an equilateral triangle in a plane $\} \ldots \{ x:x$ is a triangle in the same plane $\} $