Why brustan is the definition to Real numbers
why not?
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I'm sorry, but I'm not familiar with the term "brustan" in the context of defining real numbers. It might be a specific term or concept that I am unaware of. However, I can explain how real numbers are commonly defined.
Real numbers are an important concept in mathematics that includes all rational and irrational numbers. They can be thought of as the numbers on the number line, extending infinitely in both positive and negative directions. Real numbers are typically defined as the numbers that can be represented by a decimal expansion. This means that any number that can be expressed as a terminating decimal (like 0.75) or a repeating decimal (like 0.333...) is considered a real number.
To understand real numbers further, you can study the properties and characteristics of real numbers, such as addition, subtraction, multiplication, division, and the concept of inequalities. Additionally, studying calculus and analysis can provide a deeper understanding of the behavior and properties of real numbers.