Simplify
\[\frac{\tan 30^\circ + \tan 40^\circ + \tan 50^\circ + \tan 60^\circ}{\cos 20^\circ}.\]
Question:
Simplify
\[\frac{\tan 30^\circ + \tan 40^\circ + \tan 50^\circ + \tan 60^\circ}{\cos 20^\circ}.\]
Answer:
Let's think step by step.

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\frac{8 \sqrt{3}}{3}
Simplify
\[\frac{\tan 30^\circ + \tan 40^\circ + \tan 50^\circ + \tan 60^\circ}{\cos 20^\circ}.\]
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