Download - 2.4 The Chain Rule Objective: Find the derivative of a composite function using the Chain Rule
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2.4 The Chain RuleObjective: Find the derivative of a composite function
using the Chain Rule
Ms. BattagliaAB/BC Calculus
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The Chain RuleThe chain rule is used to compute the derivative of the composition of two or more functions.
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Theorem 2.10 The Chain RuleIf y = f(u) is a differentiable function of u and u = g(x) is a differentiable function of x, then y = f(g(x)) is a differentiable function of x then
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y=f(g(x)) u=g(x) y=f(u)
u=x+1
y=sin2x
Decomposition of a Composite Function
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Using the Chain Rule
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Differentiate
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Differentiating Functions Involving RadicalsFind all points on the graph of for which f’(x)=0 and those for which f’(x) does not exist.
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Differentiating Quotients with Constant Numerators
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Simplify by Factoring Out the Least Powers
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Simplifying the Derivative of a Quotient
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Simplifying the Derivative of a Power
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Trig Functions and the Chain Rule
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a. y=sin2x b. y=cos(x-1) c. y=tan3x
Applying the Chain Rule to Trig Functions
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Parenthesis & Trig Functions
A. y=cos3x B. y=(cos3x)2 C. y=cos(3x)2
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Parenthesis & Trig Functions
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Repeated Application of the Chain Rule
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Find the equation of the tangent line to the graph of
at the point (π,1). Then determine all values of x in the interval (0,2π) at which the graph of f has a horizontal tangent.
Tangent Line of a Trig Function
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Change in distanceChange in time
Ex: A billiard ball is dropped from a height of 100 ft, its height s at time t is given by the position function s = -16t2 + 100 where s is measured in feet and t is measured in seconds. Find the average veolcity over the time interval [1,2]. Find the instantaneous velocity at t=1.
Average velocity
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Read 2.4, Page 137 #7-20, 45-50, 55-65 odd, 109-112
Classwork/Homework