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If $\cos A=\frac{\sqrt{3}}{2}$, then $\tan 3 A=$
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Verified Answer
The correct answer is:
$\infty$
We have
$\cos A=\frac{\sqrt{3}}{2} \Rightarrow A=30^{\circ}$
$\Rightarrow \tan 3 A=\tan 90^{\circ}=\infty$.
$\cos A=\frac{\sqrt{3}}{2} \Rightarrow A=30^{\circ}$
$\Rightarrow \tan 3 A=\tan 90^{\circ}=\infty$.
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