Sum and Difference Flashcards
1
Q
sin(a+b)= x
A
sinacosb+cosasinb
2
Q
sin(a-b) = x
A
sinacosb-cosasinb
3
Q
cos(a+b)=x
A
cosacosb-sinasinb
4
Q
cos(a-b)=x
A
cosacosb+sinasinb
5
Q
tan(a+b)=x
A
(tana+tanb)/1-tanatanb
6
Q
tan(a+b)=x
A
(tana-tanb)/1+tanatanb
