1
Q
Addition formula SINE
A
sin(A+B) = sinAcosB + cosAsinB
sin(A-B) = sinAcosB - cosAsinB
2
Q
Addition formula COS
A
cos(A+B) = cosAcosB - sinAsinB
cos(A-B) = cosAcosB + sinAsinB
3
Q
Addition formula TAN
A
tan(A+B) = tanA + tanB / 1-tanAtanB
tan(A-B) = tanA - tanB/ 1+ tanAtanB
4
Q
Double angle formula SIN
A
sin2A = 2sinAcosA
5
Q
Double angle formula COS
A
cos2A =
- cos^2A - sin^2A
- 2cos^2A -1
- 1 - 2sin^2A
6
Q
Double angle formula TAN
A
tan2A = 2tanA/ 1- tan^2A
