Question

}$A=\left\{x:x\ne x\right\}$ represents

• A. $\left\{0\right\}$
• B. $\left\{\right\}$
• C. $\left\{1\right\}$
• D. $\left\{x\right]$

Answer 1

The correct option is B

$\left\{\right\}$

Explanation for the correct option:

Define the given expression:

Use the definition of set to define the given expression.

Given: $A=\left\{x:x\ne x\right\}$

It means $A$ is a set of numbers where the number is not equal to itself.

There exist no such number which is not equal to itself.

So, it should be an empty set.

Hence, option (B) is the correct .