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]