Using trigonometric identities

Learn about different ways in which trigonometric identities, such as the Pythagorean identity and the angle addition identities, can be used to solve problems.

Finding trig values using angle addition identities

Using the tangent angle addition identity

Find trig values using angle addition identities

Using trig angle addition identities: finding side lengths

Using trig angle addition identities: manipulating expressions

Using trigonometric identities