Instructional Video
Sophia Learning

Sophia: Cotangent: Lesson 1

10th - 12th
This lesson introduces the concept of the cotangent of an angle. It is 1 of 5 in the series titled "Cotangent." [3;11]
Instructional Video
Sophia Learning

Sophia: Finding a Common Factor for a Trigonometric Expression: Lesson 5

9th - 10th
The process of factoring a common value or expression from multiple terms in a trigonometric equation is shown here. This lesson is 5 of 7 in the series titled "Finding a Common Factor for a Trigonometric Expression."
Instructional Video
Sophia Learning

Sophia: Finding a Common Factor for a Trigonometric Expression: Lesson 7

9th - 10th
The process of factoring a common value or expression from multiple terms in a trigonometric equation is shown here. This lesson is 7 of 7 in the series titled "Finding a Common Factor for a Trigonometric Expression."
Instructional Video
Sophia Learning

Sophia: Finding a Common Factor for a Trigonometric Expression: Lesson 1

9th - 10th
The process of factoring a common value or expression from multiple terms in a trigonometric equation is shown here. This lesson is 1 of 7 in the series titled "Finding a Common Factor for a Trigonometric Expression."
Instructional Video
Sophia Learning

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

9th - 10th
Using a double 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 Double Angle Identity."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Applying a Double Angle Identity: Lesson 3

9th - 10th
Using a double angle trigonometric identity to help solve an equation is show here. This lesson is 3 of 7 in the series titled "Solving an Equation by Applying a Double Angle Identity."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Applying a Double Angle Identity: Lesson 5

9th - 10th
Using a double angle trigonometric identity to help solve an equation is show here. This lesson is 5 of 7 in the series titled "Solving an Equation by Applying a Double Angle Identity."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Applying a Double Angle Identity: Lesson 7

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

Sophia: Solving an Equation by Applying a Half Angle Identity: Lesson 3

9th - 10th
Using a half angle trigonometric identity to help solve an equation is show here. This lesson is 3 of 7 in the series titled "Solving an Equation by Applying a Half Angle Identity."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Applying a Half Angle Identity: Lesson 5

9th - 10th
Using a half angle trigonometric identity to help solve an equation is show here. This lesson is 5 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 3

9th - 10th
Rewriting trigonometric functions in terms of sine and cosine is shown here as a tool for solving trigonometric equations. This lesson is 3 of 7 in the series titled "Solving an Equation by Converting to Sine and Cosine."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Converting to Sine and Cosine: Lesson 5

9th - 10th
Rewriting trigonometric functions in terms of sine and cosine is shown here as a tool for solving trigonometric equations. This lesson is 5 of 7 in the series titled "Solving an Equation by Converting to Sine and Cosine."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Converting to Sine and Cosine: Lesson 6

9th - 10th
Rewriting trigonometric functions in terms of sine and cosine is shown here as a tool for solving trigonometric equations. This lesson is 6 of 7 in the series titled "Solving an Equation by Converting to Sine and Cosine."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Converting to Sine and Cosine: Lesson 1

9th - 10th
Rewriting trigonometric functions in terms of sine and cosine is shown here as a tool for solving trigonometric equations. This lesson is 1 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 2

9th - 10th Standards
Factoring a quadratic that includes trigonometric expressions is demonstrated here. This lesson is 2 of 7 in the series titled "Solving an Equation by Factoring a Trigomometric Quadratic."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Factoring a Trigomometric Quadratic: Lesson 5

9th - 10th Standards
Factoring a quadratic that includes trigonometric expressions is demonstrated here. This lesson is 5 of 7 in the series titled "Solving an Equation by Factoring a Trigomometric Quadratic."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Factoring a Trigomometric Quadratic: Lesson 7

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

Sophia: Solving an Equation by Factoring a Trigomometric Quadratic: Lesson 1

9th - 10th Standards
Factoring a quadratic that includes trigonometric expressions is demonstrated here. This lesson is 1 of 7 in the series titled "Solving an Equation by Factoring a Trigomometric Quadratic."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Factoring a Trigonometric Quadratic by Grouping

9th - 10th
Grouping terms in order to factor a quadratic that includes trigonometric expressions is demonstrated here. This lesson is 2 of 7 in the series titled "Solving an Equation by Factoring a Trigonometric Quadratic by Grouping."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Factoring a Trigonometric Quadratic by Grouping

9th - 10th
Grouping terms in order to factor a quadratic that includes trigonometric expressions is demonstrated here. This lesson is 4 of 7 in the series titled "Solving an Equation by Factoring a Trigonometric Quadratic by Grouping."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Factoring a Trigonometric Quadratic by Grouping

9th - 10th
Grouping terms in order to factor a quadratic that includes trigonometric expressions is demonstrated here. This lesson is 5 of 7 in the series titled "Solving an Equation by Factoring a Trigonometric Quadratic by Grouping."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Factoring a Trigonometric Quadratic by Grouping

9th - 10th
Grouping terms in order to factor a quadratic that includes trigonometric expressions is demonstrated here. This lesson is 7 of 7 in the series titled "Solving an Equation by Factoring a Trigonometric Quadratic by Grouping."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Factoring a Trigonometric Quadratic by Grouping

9th - 10th
Grouping terms in order to factor a quadratic that includes trigonometric expressions is demonstrated here. This lesson is 1 of 7 in the series titled "Solving an Equation by Factoring a Trigonometric Quadratic by Grouping."
Instructional Video
Sophia Learning

Sophia: Solving an Equation by Multiplying by One: Lesson 3

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 3 of 7 in the series titled "Solving an Equation by Multiplying by One."