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Q. 10

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Calculus
Found in: Page 692
Calculus

Calculus

Book edition 1st
Author(s) Peter Kohn, Laura Taalman
Pages 1155 pages
ISBN 9781429241861

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Short Answer

If f(x) is an nth-degree polynomial and Pn(x) is the nth Taylor polynomial for f at x0, what is the nth remainder Rn(x)? What is Rn+1(x)?

Thus, the required remainders are Rn(x)=fn+1(c)(n+1)!(x-x0)n+1 and Rn+1(x)=fn+2(c)(n+2)!(x-x0)n+2

See the step by step solution

Step by Step Solution

Step 1. Given Information  

The given data is If f(x) is an nth-degree polynomial and Pn(x) is the nth Taylor polynomial for f at x0

Step 2. Explanation

Consider a function f that can be differentiated (n+1) times in some open interval I that contains the point x0 and Rn(x) be the n remainder for f at x=x0

Hence, for each point xI, there is at least one c between x0 and x such that,

Rn(x)=fn+1(c)(n+1)!(x-x0)n+1 Now, (n+1)th remainder is,Rn+1(x)=fn+1+1(c)(n+1+1)!(x-x0)n+1+1 Rn+1(x)=fn+2(c)(n+2)!(x-x0)n+2

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