Examples of set of real numbers?

Answer 1

The set of real numbers is denoted by R. There is only one such set.

Answer 2

Some examples of sets of real numbers include:

1. The set of positive integers: {1, 2, 3, 4, ...}
2. The set of rational numbers: {1/2, -3/4, 5/6, ...}
3. The set of whole numbers: {..., -2, -1, 0, 1, 2, ...}
4. The set of natural numbers: {0, 1, 2, 3, 4, ...}
5. The set of Irrational Numbers: {√2, π, e, ...}