Problem
Find the exact value of the expression. \[ \cot ^{-1}(0) \] Select the correct choice below and, if necessary, fill in the answer box within your choice. A. $\cot ^{-1}(0)=\square$ (Simplify your answer. Type an exact answer, using $\pi$ as needed. Use integers or fractions for any numbers in the expression.) B. There is no solution.
Solution
Step 1 ：The problem is asking for the exact value of the expression \(\cot ^{-1}(0)\).
Step 2 ：The cotangent function is undefined at 0, so \(\cot ^{-1}(0)\) does not exist.
Step 3 ：Therefore, the correct choice is B. There is no solution.
Step 4 ：\(\boxed{\text{There is no solution}}\)
