<|system|>
Compute $\arccos \frac{\sqrt{3}}{2}.$  Express your answer in radians.</s>.
<|user|>
Can you answer based on context?
<|assistant|>
Since $\cos \frac{\pi}{6} = \frac{\sqrt{3}}{2},$ $\arccos \frac{\sqrt{3}}{2} = \frac{\pi}{6}.$