## anonymous 3 years ago tan 5pi/4

1. Luigi0210

Welcome to openstudy :)

2. Luigi0210

D you know your unit circle/triangles?

3. Luigi0210

*Do

4. anonymous

I know my unit circle I'm just having trouble remembering what to do when you are using tan. I know it would be -sqrt(2)/-sqrt(2) over -sqrt(2)/-sqrt(2) but how do simplify that or is tan totally different

5. anonymous

$$\frac{b}{b}=1$$ and $$\frac{b}{-b}=-1$$ it is one or the other

6. anonymous

you are in quadrant 3, both sine and cosine are negative, so it is 1

7. anonymous

oh okay I get it! what would I do if the values weren't the same?