mathdad
Full Member
- Joined
- Apr 24, 2015
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In the formula for the circumference of a circle of radius r, C = 2πr, the domain of the variable r is the set of positive real numbers. The same applies to the variable C, representing the circumference of a circle.
Questions
1. Why is the domain of C and r only positive real numbers?
2. Can it be that C and r also represent distance and distance cannot be negative or 0?
You say?
Questions
1. Why is the domain of C and r only positive real numbers?
2. Can it be that C and r also represent distance and distance cannot be negative or 0?
You say?
