1. The problem is to find the domain of a function, which means determining all possible input values ($x$) for which the function is defined. 2. The domain depends on the type of function and any restrictions such as division by zero or square roots of negative numbers. 3. For example, if the function involves a square root $\sqrt{f(x)}$, then the expression inside must be $\geq 0$. 4. If the function involves a denominator, it cannot be zero. 5. Without a specific function given, the general approach is to identify these restrictions and solve inequalities or equations to find valid $x$ values. 6. Please provide the function to determine its domain precisely.