2 \sqrt{2}
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Compute $\tan \left( \arccos \frac{1}{3} \right).$
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
2 \sqrt{2}
Compute $\tan \left( \arccos \frac{1}{3} \right).$
train