Trigonometry Functions and Identities

Study Trigonometry Functions using Online Video

Zane Education provides a selection of 6 Trigonometry Functions and Identities videos online for K12 curriculum elementary school, middle school, high school and college students, homeschool students and home educators studying Trigonometry Functions and Identities, Determining the Equation of a Trigonometric Function, Trigonometric Identities, Proof of sin(a+b) = (cos a)(sin b) + (sin a)(cos b) and Proof of cos(a+b) = (cos a)(cos b)-(sin a)(sin b).

Teachers and schools will also find these K12 online Trigonometry videos valuable for use in the classroom.

Please Note: All Math videos are provided free of charge, they are not subtitled, and we do not provide quizzes for any Math videos at this time.

• Mathematics > Trigonometry > Trigonometry Functions and Identities
• Determining the Equation of a Trigonometric Function (Runtime: 09:52)
• Trigonometric Identities Part 1 (Runtime: 09:10)
• Trigonometric Identities Part 2 (Runtime: 09:57)
• Trigonometric Identies Part 3 (Runtime: 08:34)
• Proof of sin(a+b) = (cos a)(sin b) + (sin a)(cos b) (Runtime: 09:48)
• Proof of cos(a+b) = (cos a)(cos b)-(sin a)(sin b) (Runtime: 09:22)