Trigonometry
Sine and Cosine
Khan Academy Tutorial on Sine and Cosine
Khan Academy Tutorial on the Pythagorean theorem
Basic Trigonometric Values
| θ in Degrees |
θ in Radians |
sinθ |
cosθ |
tanθ |
|
0° |
|
|
1 |
|
|
30° |
|
|
|
|
|
45° |
|
|
|
1 |
|
60° |
|
|
|
|
|
90° |
|
1 |
|
UND |
|
180° |
|
|
- 1 |
|
|
270° |
|
-1 |
|
UND |
|
360° |
|
|
1 |
|
Soh-Cah-Toa
Khan Academy Tutorial on Soh-Cah-Toa
Soh-Cah-Toa
Trigonometric Identities
Reciprocal
Ratio
Pythagorean
Sum and Difference
Double-Angle
OR
Half-Angle
Product to Sum
Sum to Product
Solving trigonometric equations
Youtube tutorial on solving trigonometric equations