Chapter 3 stuff Flashcards
0
Q
cos(a-b)
A
cos(a)cos(b)+sin(a)sin(b)
1
Q
cos(a+b)
A
cos(a)cos(b)-sin(a)sin(b)
2
Q
sin(a+b)
A
sin(a)cos(b)+sin(b)cos(a)
3
Q
sin(a+b)
A
sin(a)cos(b)-sin(b)cos(a)
4
Q
sin(a-b)
A
sin(a)cos(b)-sin(b)cos(a)
5
Q
tan(a+b)
A
tan(a)+tan(b)/1-tan(a)tan(b)
6
Q
tan(a-b)
A
tan(a)-tan(b)/1+tan(a)tan(b)
7
Q
cos2x
A
cos^2x-sin^2x
2cos^2x-1
1-2sin^2x
8
Q
sin2x
A
2sinxcosx
9
Q
tan2x
A
2tanx/1-tan^2x
