Problem
If $\tan t=\frac{4}{9}$, what is $\tan (t-\pi) ?$ Enter the exact answer. \[ \tan (t-\pi)= \]
Solution
Step 1 ：Given that \(\tan t = \frac{4}{9}\)
Step 2 ：We know that \(\tan (t-\pi) = \tan t\)
Step 3 ：Substitute the given value: \(\tan (t-\pi) = \frac{4}{9}\)
Step 4 ：\(\boxed{\tan (t-\pi) = \frac{4}{9}}\)
