Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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![If \( F(x) = f(g(x)) \), where \( f(1) = 8 \), \( f'(1) = 3 \), \( f'(-1) = 5 \), \( g(-1) = 1 \), and \( g'(-1) = 4 \), find \( F'(-1) \).
\[ F'(-1) = \]
To solve this problem, apply the chain rule. The chain rule states that if you have a composite function \( F(x) = f(g(x)) \), then the derivative \( F'(x) \) is given by:
\[ F'(x) = f'(g(x)) \cdot g'(x) \]
For \( F'(-1) \):
1. Evaluate \( g(-1) \), which is given as \( 1 \).
2. Evaluate \( f'(g(-1)) = f'(1) \), which is \( 3 \).
3. Evaluate \( g'(-1) \), which is \( 4 \).
4. Substitute these values into the chain rule formula:
\[ F'(-1) = f'(1) \cdot g'(-1) = 3 \cdot 4 = 12 \]
Thus, \( F'(-1) = 12 \).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fae8ec10c-0c6e-4043-9bd2-93cef2c15ace%2F4a6702f1-95a1-41ce-9ba6-67f9fe44bdaf%2Fsnof6j0a_processed.png&w=3840&q=75)
Transcribed Image Text:If \( F(x) = f(g(x)) \), where \( f(1) = 8 \), \( f'(1) = 3 \), \( f'(-1) = 5 \), \( g(-1) = 1 \), and \( g'(-1) = 4 \), find \( F'(-1) \).
\[ F'(-1) = \]
To solve this problem, apply the chain rule. The chain rule states that if you have a composite function \( F(x) = f(g(x)) \), then the derivative \( F'(x) \) is given by:
\[ F'(x) = f'(g(x)) \cdot g'(x) \]
For \( F'(-1) \):
1. Evaluate \( g(-1) \), which is given as \( 1 \).
2. Evaluate \( f'(g(-1)) = f'(1) \), which is \( 3 \).
3. Evaluate \( g'(-1) \), which is \( 4 \).
4. Substitute these values into the chain rule formula:
\[ F'(-1) = f'(1) \cdot g'(-1) = 3 \cdot 4 = 12 \]
Thus, \( F'(-1) = 12 \).
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