Sophia Learning
Sophia: Drawing a Triangle on the Unit Circle
This lesson shows how to draw a right triangle on a unit circle.
Sophia Learning
Sophia: Drawing a Negative Angle
This lesson show haw a negative angle can be drawn on a unit circle.
Sophia Learning
Sophia: Trigonometric Functions in Context: Lesson 6
The practical uses of the trigonometric functions are explored here. This lesson is 6 of 6 in the series titled "Trigonometric Functions in Context."
Sophia Learning
Sophia: Cosine: Lesson 1
The concept of the cosine of an angle is introduced here. This lesson is 1 of 4 in the series titled "Cosine." [3:01]
Sophia Learning
Sophia: Sine: Lesson 1
The concept of the sine of an angle is introduced here. This lesson is 1 of 6 in the series titled "Sine."
Sophia Learning
Sophia: Relationships of Trigonometric Functions: Lesson 3
Relationships among the six trigonometric functions are explored in this lesson. It is 3 of 4 in the series titled "Relationships of Trigonometric Functions." Includes short quiz. [4:46]