Find the value of
\[8\cos^210^\circ - \dfrac{1}{\sin 10^\circ}.\]
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Find the value of
\[8\cos^210^\circ - \dfrac{1}{\sin 10^\circ}.\]
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
2
Find the value of
\[8\cos^210^\circ - \dfrac{1}{\sin 10^\circ}.\]
train