Question

Identify the type of Set

$A=\{x|xϵN,x<1\}$

• A. Finite Set
• B. Infinite Set
• C. Null Set
• D. Singleton Set

Answer 1

The correct option is C Null Set

We have to identify the type of set.
Given $A=\{x|x\in N,x<1\}$
$=\left\{\varphi \right\}$ since $x$ is a natural number it starts from 1. Therefore there is no number less than 1 in $N$.
Therefore $A$ is a null set.