1st degree taylor polynomial question

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SUMMARY

The discussion focuses on finding an interval I for the function f(x) = ln(x) such that the error bound of the tangent line approximation t(x) = x - 1 remains less than or equal to 0.01. The user has identified the need to evaluate the absolute difference |f(x) - t(x)| and is advised to consider the appropriate remainder term for the Taylor series. The key takeaway is that the user must determine the correct form of the remainder term to establish the interval I effectively.

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Homework Statement


find an interval I such that the tangent line error bound is always less than or equal to 0.01 on I

f(x) = ln(x)
b = 1

The Attempt at a Solution


so basically, i found the tangent line approximation at b = 1, which is t(x) = x -1.

From there though, i have no idea how to continue.
I figured out that abs[f(x) - t(x)]is always supposed to be less than 0.01 on I, but i have no idea how to find I.

thanks a lot.
 
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I think you'll want to think about writing down some form of remainder term for the taylor series. There are several. Which one are you expected to use?
 

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