Question

What is a real number??
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Answer 1

The real numbers include all the rational numbers, such as the integer −5 and the fraction 4/3, and all the irrational numbers, such as √2 (1.41421356..., the square root of 2, an irrational algebraic number).

Answer 2

Real numbers can be defined in many ways, and has many definitions, but they all lead to the same conclusion -A real number is a number that can be found on the number line.