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Greg Kelly, Hanford High School, Richland, Washington

Learn how to find derivatives of trigonometric functions and graph the resulting curves. Includes examples and step-by-step explanations.

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Greg Kelly, Hanford High School, Richland, Washington

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  1. Photo by Vickie Kelly, 2001 Greg Kelly, Hanford High School, Richland, Washington 3.5 Derivatives of Trig Functions London Bridge, Lake Havasu City, Arizona

  2. slope Consider the function We could make a graph of the slope: Now we connect the dots! The resulting curve is a cosine curve.

  3. slope We can do the same thing for The resulting curve is a sine curve that has been reflected about the x-axis.

  4. We can find the derivative of tangent x by using the quotient rule.

  5. Derivatives of the remaining trig functions can be determined the same way. p

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