Mathematics Describing the Real World: Precalculus and Trigonometry

Mathematics Describing the Real World: Precalculus and Trigonometry

Sum and Difference Formulas (1x20)


Air date: Jun 16, 2011

Study the important formulas for the sum and difference of sines, cosines, and tangents. Then use these tools to get a preview of calculus by finding the slope of a tangent line on the cosine graph. In the process, you discover the derivative of the cosine function.

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  • Premiered: Jun 2011
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