TR-32: Intro to Identities and Proofs (Trigonometry series by Dennis F. Davis)
The difference between equations and identities. The reciprocal identities (which we actually covered in TR-14). The two-column format for formal proofs and simple proofs using reciprocal identities.
Extra Problems and Drills TR-32X [https://youtu.be/QfDEJ6L0Dzg]
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-32: Intro to Identities and Proofs (Trigonometry series by Dennis F. Davis) канала Dennis Davis
Extra Problems and Drills TR-32X [https://youtu.be/QfDEJ6L0Dzg]
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-32: Intro to Identities and Proofs (Trigonometry series by Dennis F. Davis) канала Dennis Davis
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