\frac13
Question:
In right triangle $DEF$, we have $\angle E = 90^\circ$ and $\tan D = 3\sin D$.  What is $\sin F$?
Answer:
Let's think step by step.

user
\frac13
In right triangle $DEF$, we have $\angle E = 90^\circ$ and $\tan D = 3\sin D$.  What is $\sin F$?
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