Instructional Video
Sophia Learning

Sophia: Trigonometric Identities: Lesson 2

9th - 10th
This lesson presents trigonometric identities. It is 2 of 4 in the series titled "Trigonometric Identities."
Instructional Video
Sophia Learning

Sophia: Trigonometric Identities: Lesson 3

9th - 10th
This lesson presents trigonometric identities. It is 3 of 4 in the series titled "Trigonometric Identities."
Instructional Video
Sophia Learning

Sophia: Trigonometric Reciprocal Relationships: Lesson 3

9th - 10th
This lesson presents trigonometric reciprocal relationships. It is 3 of 4 in the series titled "Trigonometric Reciprocal Relationships."
Instructional Video
Sophia Learning

Sophia: Trigonometric Reciprocal Relationships: Lesson 1

9th - 10th
This lesson presents trigonometric reciprocal relationships. It is 1 of 4 in the series titled "Trigonometric Reciprocal Relationships."
Instructional Video
Sophia Learning

Sophia: Rewriting an Identity in Terms of a Ratio: Lesson 4

9th - 10th
This lesson shows how to rewrite an identity in terms of a ratio. It is 4 of 7 in the series titled "Rewriting an Identity in Terms of a Ratio."
Instructional Video
Sophia Learning

Sophia: Rewriting in Terms of a Reciprocal: Lesson 5

9th - 10th
This lesson demonstrates how to rewrite expressions in terms of reciprocals. It is 5 of 6 in the series titled "Rewriting in Terms of a Reciprocal."
Instructional Video
Sophia Learning

Sophia: Simplifying Through Reciprocals: Lesson 1

9th - 10th
This lesson demonstrates how to simplify expressions in terms of reciprocals. It is 1 of 5 in the series titled "Simplifying Through Reciprocals."
Instructional Video
Sophia Learning

Sophia: Simplifying Through Reciprocals: Lesson 5

9th - 10th
This lesson demonstrates how to simplify expressions in terms of reciprocals. It is 5 of 5 in the series titled "Simplifying Through Reciprocals."
Instructional Video
Sophia Learning

Sophia: Solving a Pythagorean Identity for Sine: Lesson 4

9th - 10th Standards
This lesson demonstrates how to solve a Pythagorean identity for sine. It is 4 of 7 in the series titled "Solving a Pythagorean Identity for Sine." [2:04]
Instructional Video
Sophia Learning

Sophia: Solving a Pythagorean Identity for Tangent: Lesson 3

9th - 10th
This lesson shows how the Pythagorean Identity can be solved for the tangent function. It is 3 of 6 in the series titled "Solving a Pythagorean Identity for Tangent." [3:10]
Instructional Video
Sophia Learning

Sophia: Trigonometric Identities: Lesson 4

9th - 10th
This lesson presents trigonometric identities. It is 4 of 4 in the series titled "Trigonometric Identities."
Instructional Video
Sophia Learning

Sophia: Trigonometric Reciprocal Relationships: Lesson 4

9th - 10th
This lesson presents trigonometric reciprocal relationships. It is 4 of 4 in the series titled "Trigonometric Reciprocal Relationships."
Instructional Video
Sophia Learning

Sophia: Solving a Pythagorean Identity for Cosine: Lesson 8

9th - 10th Standards
In this lesson, students will be shown how to solve a Pythagorean identity for cosine. It is 8 of 8 in the series titled "Solving a Pythagorean Identity for Cosine."