TR-37: More Trig Reflections (Trigonometry series by Dennis F. Davis)

Описание: All reflection identities are covered. These are quadrantal angles plus-or-minus a reference angle theta. The sine and cosine of these angles can be expressed in terms of the sine and cosine of theta. Memorization should not be needed since the circle's symmetry makes them easy to visualize.

Series introduction including complete video list:
TR-00: [   • TR-00: Introduction to Trigonometry Series...  ]

International A level, Intl A Level, IAL, Edexcel, Pearson exam board, CIE, Cambridge exam board, P3, P2, Year 10, Class 11