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Range of a rational expression

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What is the range of a rational expression?
Be sure to limit your discussion to expressions only and keep in mind that functions, equations and graphs are not expressions. Give two examples of expressions and their respective range

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The expert determines the range of a rational expression.

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The answer is given below.

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A rational expression is nothing more than a fraction in which the numerator and/or the denominator are polynomials.
The range of a rational ...

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