1. The problem is to simplify the expression $$\sqrt{\wedge} - \sqrt{15}$$. 2. The symbol $\wedge$ is not a standard numeric value or variable in mathematics, so it cannot be simplified or evaluated further. 3. Since $\wedge$ is undefined or symbolic, the expression remains as is: $$\sqrt{\wedge} - \sqrt{15}$$. 4. Without a numeric or algebraic definition for $\wedge$, no further simplification is possible. Final answer: $$\sqrt{\wedge} - \sqrt{15}$$