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2.3 The Product and Quotient Rules and Higher-Order Derivatives (Part 2)
London Bridge, Lake Havasu City, Arizona Greg Kelly, Hanford High School, Richland, Washington Photo by Vickie Kelly, 2001
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Objectives Find the derivative of a trigonometric function.
Find a higher-order derivative of a function.
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Consider the function slope We could make a graph of the slope: Now we connect the dots! The resulting curve is a cosine curve.
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We can do the same thing for
slope The resulting curve is a sine curve that has been reflected about the x-axis.
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We can find the derivative of tangent x by using the quotient rule.
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Derivatives of the remaining trig functions can be determined the same way.
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Example: Find the derivative
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Example: Find the derivative
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Find the derivative:
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Higher Order Derivatives:
is the first derivative of y with respect to x. is the second derivative. (y double prime) is the third derivative. is the fourth derivative.
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Higher Order Derivatives:
See notation on page 123: y f(x) y' f '(x) dy/dx y'' f ''(x) d2y/dx2 y''' f '''(x) d3y/dx3 y (4) f (4)(x) d4y/dx4
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Homework 2.3 (page 124) #43-71 odd #83-91 odd #95, 97, 101, 103
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