Explanation Given: x 3 + 2 x − 4 = 0 and x 1 = 1 Concept Used: Newton’s method to find ( n + 1 ) th approximate root of an equation f ( x ) = 0 is x n + 1 = x n − f ( x n ) f ′ ( x n ) Where, x n is nth approximate root and f ′ ( x n ) ≠ 0 Calculation: To find third approximate root of equation x 3 + 2 x − 4 = 0 where x 1 = 1 Use Newton’s method, that states ( n + 1 ) th approximate root of an equation f ( x ) = 0 is x n + 1 = x n − f ( x n ) f ′ ( x n ) Here, f ( x ) = x 3 + 2 x − 4 , and x 1 = 1 Now, calculate f ′ ( x ) as f ′ ( x ) = d d x ( x 3 + 2 x − 4 ) = d d x x 3 + 2 d d x x − d d x 4 = 3 x 2 + 2 − 0 = 3 x 2

Bundle: Biocalculus: Calculus, Probability, And Statistics For The Life Sciences + Webassign Printed Access Card For Stewart/day's Biocalculus: Calculus For Life Sciences, 1st Edition, Multi-term

1st Edition

ISBN: 9781305779037

Author: James Stewart, Troy Day

Publisher: Cengage Learning

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Chapter 3.8, Problem 21E

To determine

To find third approximate root of equation

x3+2x−4=0

Using Newton’s method, where x1=1

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Chapter 3.8, Problem 20E

Chapter 3.8, Problem 22E

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Chapter 3 Solutions

Bundle: Biocalculus: Calculus, Probability, And Statistics For The Life Sciences + Webassign Printed Access Card For Stewart/day's Biocalculus: Calculus For Life Sciences, 1st Edition, Multi-term

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To find third approximate root of equation x 3 + 2 x − 4 = 0 Using Newton’s method, where x 1 = 1

Solution Summary: The author explains Newton’s method to find the third approximate root of an equation x3+2x-4=0.

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To find third approximate root of equation

x3+2x−4=0

Using Newton’s method, where x1=1

Want to see the full answer?

Chapter 3 Solutions

To find third approximate root of equation x 3 + 2 x − 4 = 0 Using Newton’s method, where x 1 = 1

Solution Summary: The author explains Newton’s method to find the third approximate root of an equation x3+2x-4=0.

Concept explainers

Videos

To find third approximate root of equation x3+2x−4=0 Using Newton’s method, where x1=1

Want to see the full answer?

Chapter 3 Solutions

To find third approximate root of equation

x3+2x−4=0

Using Newton’s method, where x1=1