Trigonometry - Addition & Double Angle Formulas | A Level Year 2

Learn Addition & Double Angle Formulas for A Level Year 2. Chapters: 00:00 Intro & Addition & Double Angle Formulas 01:12 Example 1 - Solve 02:51 Example 2 - Proof 03:37 Outro Previous videos on Trigonometry: Trigonometry - Solving Trig Equations | A Level Year 1 https://youtu.be/NqP5khciOhA Trigonometry - 2 Important Trig Identities | A Level Year 1 https://youtu.be/gPbi8zHhpRA Trigonometry - Solving Trig Equations in Radians | A Level Year 2 https://youtu.be/ZWGQi5WYxL4 Trigonometry - Radians - Arc Length & Sector Area | A Level Year 2 https://youtu.be/ODyJCy1OIjs Trigonometry - Radians - Small Angle Approximations | A Level Year 2 https://youtu.be/k6h5lFAJOM8 Trigonometry - Reciprocal & Inverse Trig Graphs | A Level Year 2 https://youtu.be/nlArLcNpHNg Trigonometry - Reciprocal Trig Identities | A Level Year 2 https://youtu.be/SzN7XJ3yvEA A Level Pure Maths Playlist: https://www.youtube.com/playlist?list=PLoe2fa9mNHCn9gcJkCt4_QxNheel5Gjas Keywords: Trigonometry, Trig, Radians, Addition Formula, Double Angle Formula, A Level Maths, Maths Revision, Exam Revision, Sixth Form Enquiries: [email protected] Music: https://www.elliotnicklin.com