TR-36 - Even and Odd Trig Functions (Trigonometry series by Dennis F. Davis)
The reflection identities cos(-x)=cos(x) and sin(-x)=-sin(x). These are angles that are reflections of each other across the Y-axis.
Series introduction including complete video list:
TR-00: [https://youtu.be/U23JMdBIJ0M]
International A level, Intl A Level, IAL, Edexcel, Pearson exam board, CIE, Cambridge exam board, P3, P2, Year 10, Class 11
Видео TR-36 - Even and Odd Trig Functions (Trigonometry series by Dennis F. Davis) канала Dennis Davis
Series introduction including complete video list:
TR-00: [https://youtu.be/U23JMdBIJ0M]
International A level, Intl A Level, IAL, Edexcel, Pearson exam board, CIE, Cambridge exam board, P3, P2, Year 10, Class 11
Видео TR-36 - Even and Odd Trig Functions (Trigonometry series by Dennis F. Davis) канала Dennis Davis
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