Floating Point

In IEEE754, **NaN** (Not a Number) is a special floating-point value used to represent undefined or unrepresentable values. According to the IEEE754 standard, **NaN** is not equal to itself, which means the expression evaluates to **false**. This is designed to handle undefined operations, like division by zero or square root of negative numbers.
Conclusion.
Thus, the result of the operation is **false**.

In the IEEE754 floating-point representation, **+0** and **-0** are represented in almost the same way except for the sign bit.

- Both **+0** and **-0** share the same **exponent** and **mantissa** bits.

- The only difference is the **sign bit**: - **+0** has the sign bit **0**.

- **-0** has the sign bit **1**. This design ensures that **+0** and **-0** are treated as distinct values, even though they represent the same magnitude.

Thus, the correct option is **(2)**: **"They differ only in the sign bit; their exponent and mantissa bits are identical."**