Sum And Difference Flashcards
1
Q
sin (x+y) = sinxcosy+sinycosx
A
sin (x+y)
2
Q
sin (x-y) = sinxcosy - sinycosx
A
sin (x-y)
3
Q
cos (x+y) = cosxcosy - sinxsiny
A
cos (x+y)
4
Q
cos (x-y) = cosxcosy + sinxsiny
A
cos (x-y)
5
Q
tan (x+y) = tanx + tany /1 - tanxtany
A
tan (x+y)
6
Q
tan (x-y) = tanx - tany / 1 + tanxtany
A
tan (x-y)