∞ - ∞
The expression "∞ - ∞" represents an indeterminate form in mathematics. It arises in calculus and limits when dealing with infinite quantities. Since infinity is not a specific number but rather a concept representing unboundedness, subtracting one infinite quantity from another does not yield a clear or defined result.
In mathematical analysis, this indeterminate form often requires further evaluation through techniques such as L'Hôpital's Rule or algebraic manipulation. These methods help clarify the behavior of functions as they approach infinity, allowing mathematicians to derive meaningful conclusions from seemingly ambiguous situations.