Find the Domain r=2.5

Problem

r=2.5

Solution

1. Identify the type of expression provided. The expression r=2.5 represents a constant value or a point on a number line.

2. Determine if there are any restrictions. In a basic algebraic context where r is a real-valued variable, there are no denominators that could be zero, no square roots of negative numbers, and no logarithms of non-positive numbers.

3. Define the domain. Since there are no mathematical operations that restrict the input, the domain of a constant function or a variable defined as a constant is the set of all real numbers.

4. Express the domain in interval notation. The set of all real numbers is represented from negative infinity to positive infinity.

Final Answer

Domain:(−∞,∞)

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