Khan Academy
Khan Academy: Trigonometry: Using Trig Functions
Video using the basic trigonometric functions to find the length of a side in a right triangle. Examples are given with angle measures in radians. Includes link to additional practice problems. [10:03]
Khan Academy
Khan Academy: Trigonometry: Graph of the Sine Function
Video showing how to derive the graph of the sine function from the unit circle. Includes link to additional practice problems. [7:44]
Khan Academy
Khan Academy: Trigonometry: Graphing Trig Functions
Video showing how to graph the sine and cosine functions from their equations with modifications to the amplitude and period. Also gives an example of determining the trigonometric function using the features of the graph. Includes link...
Khan Academy
Khan Academy: Geometry: Ca Geometry: More Trig
The video tutorial [12:21] demonstrates solutions to problems #66-70 of California Geometry released state test questions. Problems address basic trigonometry ratios, 30-60-90 triangles.
Khan Academy
Khan Academy: Trigonometry: Basic Trigonometry Ii
Continuation of video lesson introducing the basic trigonometric ratios. Examples of finding sine, cosine and tangent for two different right triangles, including finding side lengths by the Pythagorean Theorem and rationalizing the...
Khan Academy
Khan Academy: Trigonometry: Basic Trigonometry
Video introducing the basic trigonometry ratios sine, cosine, and tangent. Examples are shown for the two acute angles of a right triangle. Includes link to additional practice problems. [9:17]
Khan Academy
Khan Academy: Ca Geometry: Basic Trigonometry
Demonstrates solutions to problems #61-65 of California Geometry released state test questions. Problems address the equation of a circle, basic trigonometry. [11:04]
Sophia Learning
Sophia: Sin: Lesson 3
This lesson will discuss how sin is viewed by a variety of religious traditions,. It is 3 of 3 in the series titled "Sin."
Sophia Learning
Sophia: Sin: Lesson 1
This lesson will discuss how sin is viewed by a variety of religious traditions,. It is 1 of 3 in the series titled "Sin."