## ChuckNora16 Group Title Rewrite the expression 2sin theta (cos theta)(cot theta) in terms of sine or cosine. For this problem, I got started but I don't know what to do next. 2 years ago 2 years ago

1. ChuckNora16

2. MelanyN17

D.

3. dpaInc

$$\large 2sin\theta cos\theta cot\theta = 2sin\theta cos\theta \frac{cos\theta}{sin\theta}$$

4. ChuckNora16

I'm trying to figure out how to solve it

5. dpaInc

cancel the sin(theta)

6. RomeoRaj

2cos^2theta

7. ChuckNora16

Thank you dplanc, I forgot what cot theta was

8. dpaInc

yw...:)

9. ChuckNora16

So why does sin cancle out instead of cos?