Table of contents
- 0. Review of College Algebra(0)
- 1. Measuring Angles(0)
- 2. Trigonometric Functions on Right Triangles(0)
- 3. Unit Circle(0)
- 4. Graphing Trigonometric Functions(0)
- 5. Inverse Trigonometric Functions and Basic Trigonometric Equations(0)
- 6. Trigonometric Identities and More Equations(0)
- 7. Non-Right Triangles(0)
- 8. Vectors(0)
- 9. Polar Equations(0)
- 10. Parametric Equations(0)
- 11. Graphing Complex Numbers(0)
6. Trigonometric Identities and More Equations
Sum and Difference Identities
6. Trigonometric Identities and More Equations
Sum and Difference Identities: Study with Video Lessons, Practice Problems & Examples
Back to all problems
117PRACTICE PROBLEM
Utilize the suitable formula to represent multiplication as an addition or subtraction.
cos 71α cos 29α
Utilize the suitable formula to represent multiplication as an addition or subtraction.
cos 71α cos 29α