Unit circle
by Jazzmine Cotton
1. sin(x+y)=sinxcosy+cosxsiny
2. sine, cosine and tangent
3. tangent=sin/cos
4. even functions
5. Cos(x) = Cos(-x)
6. tan(a+b)=sin(a+b)/cos(a+b)
7. tan(a-b)=sin(a-b)/cos(a-b)
8. tan(a+b)=tana+tanb/1-tanatanb
9. tan(a-b)=tanatanb/1+tanatanb
10. opposite inputs get same outputs
11. sine=y
12. cosine=x
13. F(x)=F(-x)
14. odd functions
15. -Sin(x)=Sin(-x)
16. Symmetry
17. pythagorean identity
18. sinx^2+cosx^2=1
19. angle measurement of the unknown (sin or cos)
20. opposite inputs produce different outputs