To explain:
The rational numbers are a field or not.
Answer to Problem 36WE
The rational numbers are a field.
Explanation of Solution
Definition of rational numbers:
A rational number is a number that can be expressed as two integers, a numerator
Thus, from the above definition,
The rational numbers are a field under the operations of addition and multiplication, because the rational numbers obey all field properties.
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Algebra and Trigonometry: Structure and Method, Book 2
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