We define the six trigonometric functions of an angle in terms of the coordinates of a point on the unit circle intersected by the terminal side of the angle. We then see another way to define trigono...We define the six trigonometric functions of an angle in terms of the coordinates of a point on the unit circle intersected by the terminal side of the angle. We then see another way to define trigonometric functions using properties of right triangles.
Trigonometric functions are defined for right triangles. Find all trigonometric ratios given 3 sides or given 1 trigonometric ratio. Solve for all sides and angles given 2 sides or given one side and ...Trigonometric functions are defined for right triangles. Find all trigonometric ratios given 3 sides or given 1 trigonometric ratio. Solve for all sides and angles given 2 sides or given one side and one angle. Examples of right triangle applications are given. Find an acute angle given 2 sides and related applications. Cofunction identities. Most examples in this section use degrees.
