TR-20: Graphing Secant and Cosecant (Trigonometry series by Dennis F. Davis)

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Graphs of secant and cosecant curves. Asymptotes are placed where function's denominator = 0. Graphing methods and hints are provided.

Series introduction including complete video list:

International A level, Intl A Level, IAL, Edexcel, Pearson exam board, CIE, Cambridge exam board, P3, P2, Year 10, Class 11
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Nice video, before your video I don't quite understand how "work" trigonometry. Thanks very much.

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