Sum & Difference Identity Flashcards
0
Q
cos(A-B)
A
cosA•cosB + sinA•sinB
1
Q
cos(A+B)
A
cosA•cosB - sinA•sinB
2
Q
tan(A+B)
A
(tanA + tanB) / (1 - (tanA•tanB))
3
Q
tan(A-B)
A
(tanA - tanB) / (1 + (tanA•tanB))
4
Q
sin(A+B)
A
sinA•cosB + cosA+sinB
5
Q
sin(A-B)
A
sinA•cosB - cosA+sinB
