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;
7 Cards in this Set
- Front
- Back
|
Convert degrees to radians
|
π/180
|
|
|
Convert radians to degrees
|
180/π
|
|
|
Trigonometric Functions
|
sinΘ = y/r
cosΘ = x/r tanΘ = y/x cscΘ = r/y secΘ = r/x cotΘ = x/y |
|
|
Quotient Identities
|
tanx = sinx / cosx
cotx = cosx / sinx |
|
|
Reciprocal Identities
|
cscx = 1 / sinx
secx = 1 / cosx cotx = 1 / tanx sinx = 1 / cscx cosx = 1 / secx tanx = 1 / cotx |
|
|
Pythagorean Identities
|
Sin^2^x + Cos^2^x = 1
1 + tan^2^x = sec^2^x 1 + cot^2^x = csc^2^x |
|
|
Sum / difference formulas
|
cos(u + v) = cosu cosv - sinu sinv
cos(u - v) = cosu cosv + sinu sinv sin(u - v) = sinu sinv - cosu sinv sin(u + v) = sinu sinv+ cosu cosv |
