Compute
\[\frac{1}{2 \sin 10^\circ} - 2 \sin 70^\circ.\]
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Compute
\[\frac{1}{2 \sin 10^\circ} - 2 \sin 70^\circ.\]
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
1
Compute
\[\frac{1}{2 \sin 10^\circ} - 2 \sin 70^\circ.\]
train