Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
|
cscθ =
|
1/sinθ
|
|
|
tanθ =
|
sinθ/cosθ
|
|
|
cotθ =
|
1/tanθ OR cosθ/sinθ
|
|
|
secθ =
|
1/cosθ
|
|
|
sin^2θ + cos^2θ =
|
1
|
|
|
1 + tan^2θ =
|
sec^2θ
|
|
|
1 + cot^2θ =
|
csc^2θ
|
|
|
sin(-θ) =
|
-sinθ
|
|
|
cos(-θ) =
|
cosθ
|
|
|
tan(-θ) =
|
-tanθ
|
|
|
sin(π/2 - θ)
|
cosθ
|
|
|
cos(π/2 - θ)
|
sinθ
|
|
|
tan(π/2 - θ)
|
cotθ
|
|
|
sin A/a = sin B/b =
|
sin C/c
|
|
|
a^2 = b^2 + ...
|
c^2 - 2bc cosA
|
|
|
b^2 = a^2 + c^2 ...
|
- 2ac cosB
|
|
|
c^2 = a^2 + b^2 ...
|
- 2ab cosC
|
|
|
sin(x+y) =
|
sinxcosy + cosxsiny
|
|
|
sin(x-y) =
|
sinxcosy - cosxsiny
|
|
|
cos(x+y) =
|
cosxcosy - sinxsiny
|
|
|
cos(x-y) =
|
cosxcosy + sinxsiny
|
|
|
tan(x+y) =
|
tanx + tany/1 - tanxtany
|
|
|
tan(x-y) =
|
tanx - tany/1 + tanxtany
|
|
|
sin2x =
(Double Angle Formula) |
2sinxcosx
(Double Angle Formula) |
|
|
cos2x =
|
cos^2x - sin^2x
OR 2cos^2x - 1 OR 1 - 2sin^2x |
|
|
tan2x =
|
2tanx/1 - tan^2x
|
|
|
sin^2x =
|
1 - cos2x/2
|
|
|
cos^2x =
|
1 + cos2x/2
|
