The expression "0/0" represents a mathematical operation where zero is divided by zero. In mathematics, division by zero is undefined because it does not yield a unique or meaningful result. This creates ambiguity, as any number multiplied by zero equals zero, making it impossible to determine a specific value for "0/0." In calculus, "0/0" often appears in limits and can indicate an indeterminate form. To resolve this, mathematicians use techniques like L'Hôpital's Rule or algebraic manipulation to analyze the behavior of functions as they approach this form, allowing for a clearer understanding of the limit's value.