\frac{\sqrt{5}}{3}
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Compute $\cos \left( \arcsin \frac{2}{3} \right).$
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
\frac{\sqrt{5}}{3}
Compute $\cos \left( \arcsin \frac{2}{3} \right).$
train