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Calculating derivatives f(x+h)f(x) a. or the following

Calculus: Early Transcendentals | 1st Edition | ISBN: 9780321570567 | Authors: William L. Briggs, Lyle Cochran, Bernard Gillett ISBN: 9780321570567 2

Solution for problem 49E Chapter 3.1

Calculus: Early Transcendentals | 1st Edition

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Calculus: Early Transcendentals | 1st Edition | ISBN: 9780321570567 | Authors: William L. Briggs, Lyle Cochran, Bernard Gillett

Calculus: Early Transcendentals | 1st Edition

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Problem 49E

Calculating derivatives f(x+h)?f(x) ? a. ? or the following functions, find f’ using the definitionf (x) = lh?0 h . ? b. ?Determine an equation of the line tangent to the g ? ra?p? o? f f at (?a,? )) ?for the given value of a. f(x) = 3x+1; a = 8

Step-by-Step Solution:
Step 1 of 3

SOLUTION STEP 1 (a). Given f(x) = 3x+1. We need to find the derivative of f(x) using the definition of the derivative f(x+h)f(x) The definition of the derivative is(x) = lim h h0 f(x+h) = 3x+h)+1 3(x+h)+1 3x+1 Thus f (x) = lim h h0 To solve this we have to multiply the numerator and the denominator with the conjugate of the numerator. 3(x+h)+1 3x+1 3(x+h)+1 3x+1 3(x+h)+1+ 3x+1 Therefore f(x) = lim h = lim h × 3(x+h)+1+ 3x+1 h0 h0 3(x+h)+1(3x+1) 3h =lh0 h 3(x+h)+1+ 3x+1h0 h(3(x+h)+1+ 3x+1 = 3 = 3 3x+1+ 3x+1 2 3x+1 Therefore...

Step 2 of 3

Chapter 3.1, Problem 49E is Solved
Step 3 of 3

Textbook: Calculus: Early Transcendentals
Edition: 1
Author: William L. Briggs, Lyle Cochran, Bernard Gillett
ISBN: 9780321570567

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Calculating derivatives f(x+h)f(x) a. or the following

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