Find the second Taylor polynomial P2(x) for the function f(x) = √4 + x about x0 = 0. Approximate √3.9 using P2(x). Find the absolute error and the relative error for the approximation (you can use your calculator to find the “exact” value for √3.9)
Find the second Taylor polynomial P2(x) for the function f(x) = √4 + x about x0 = 0. Approximate √3.9 using P2(x). Find the absolute error and the relative error for the approximation (you can use your calculator to find the “exact” value for √3.9)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question
Find the second Taylor polynomial P2(x) for the function f(x) = √4 + x
about x0 = 0. Approximate √3.9 using P2(x). Find the absolute error and the relative error for the approximation (you can use your calculator to find the “exact” value for √3.9).
Expert Solution
Step 1
The Taylors series expansion can be used to approximate the values of the function at a point. The series expansion is obtained using the formula .
Here, k is the number of terms, is the point around which the series is expanded. The expansion can be calculated using the derivatives of the function.
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