Instructional Video
Sophia Learning

Sophia: Solving an Equation by Applying a Half Angle Identity: Lesson 2

9th - 10th
Using a half angle trigonometric identity to help solve an equation is show here. This lesson is 2 of 7 in the series titled "Solving an Equation by Applying a Half Angle Identity."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Converting to Sine and Cosine: Lesson 7

9th - 10th
Rewriting trigonometric functions in terms of sine and cosine is shown here as a tool for solving trigonometric equations. This lesson is 7 of 7 in the series titled "Solving an Equation by Converting to Sine and Cosine."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Factoring a Trigomometric Quadratic: Lesson 6

9th - 10th Standards
Factoring a quadratic that includes trigonometric expressions is demonstrated here. This lesson is 6 of 7 in the series titled "Solving an Equation by Factoring a Trigomometric Quadratic."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Multiplying by One: Lesson 1

9th - 10th
This lesson demonstrates how multiplying by a carefully chosen value of one can be used to help solve a trigonometric equation. It is 1 of 7 in the series titled "Solving an Equation by Multiplying by One."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Squaring Both Sides: Lesson 2

9th - 10th Standards
How squaring both sides of a trigonometric equation can help solve the equation is demonstrated here. This lesson is 2 of 8 in the series titled "Solving an Equation by Squaring Both Sides."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Squaring Both Sides: Lesson 6

9th - 10th Standards
How squaring both sides of a trigonometric equation can help solve the equation is demonstrated here. This lesson is 6 of 8 in the series titled "Solving an Equation by Squaring Both Sides."
Instructional Video
Sophia Learning

Sophia: Solving an Equation Using the Quadratic Formula: Lesson 5

9th - 10th
Using the quadratic formula with terms that include trigonometric expressions is shown here. This lesson is 5 of 7 in the series titled "Solving an Equation Using the Quadratic Formula."
Instructional Video
Sophia Learning

Sophia: Trigonometric Equations: Lesson 3

9th - 10th Standards
Equations that include trigonometric functions are introduced here. This lesson is 3 of 5 in the series titled "Trigonometric Equations."