## anonymous 5 years ago find the exact value of sin (-120)

1. anonymous

sin(-a) = -sin(a) sin(x) = sin(180-x) Gogogogog

2. anonymous

I don't understand that? is the answer -sin 60

3. anonymous

I don't understand that? is the answer -sin 60

4. anonymous

yes, sorry

5. anonymous

knowak stop player hating ¬_¬

6. anonymous

but, of course, you need to know the value of sin 60... $-\sin 60 = -\frac{\sqrt{3}}{2}$ I think

7. anonymous

dont you have to add 360 to make the number positive first?