## anonymous one year ago sin(x−π)=−sin(x)

• This Question is Open
1. hartnn

yep, thats true, do you need to prove it?

2. hartnn

if so, use $$\Large \sin (a-b) = \sin a \cos b - \cos a \sin b$$ and plug in, a =x and b = $$\bbox[yellow]\pi$$

3. zzr0ck3r

What are you allowed to use?

4. zzr0ck3r

As I am sure the one you posted is used to prove the one that was given...

Find more explanations on OpenStudy