Question
Use the given information to find the exact value of each of the following:a. $\sin 2 \theta$b. $\cos 2 \theta$c. $\tan 2 \theta$$\cot \theta=3, \theta$ lies in quadrant III.
Step 1
We can rewrite $\cot \theta$ as $\frac{x}{y} = 3$. Since $\theta$ is in the third quadrant, both $x$ and $y$ are negative. So, we can say $x = -3$ and $y = -1$. Show more…
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