TrigonometryHow to Graph Sine, Cosine, Tangent by Hand

Brett introduces you to the three fundamental trigonometric graphs: Sine, Cosine, and Tangent. By the end of today’s lesson, you will know how to sketch each of the graphs by hand WITHOUT a calculator or reference table, understand how they relate back to the Unit Circle, and learn some handy tips and tricks along the way!


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  • How to Graph the Sine Function: 0:44
  • How to Graph the Cosine Function: 9:03
  • How to Graph the Tangent Function: 16:15

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