i need the answer quickly Q3: Construct a 3rd order Lagrange polynomial of the function f(x) = Inx.cosxwhere x e [1, 4]. Then find the exact and approximate values of f(2.4) andf(4.5) and estimate the error.

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Answered: Q3: Construct a 3rd order Lagrange…

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter3: Functions

Section3.7: Inverse Functions

Problem 2SE: Why do we restrict the domain of the function f(x)=x2 to find the function's inverse?

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Q3: Construct a 3rd order Lagrange polynomial of the function f(x) = lnx.cosx where x e [1, 4]. Then find the exact and approximate values of f(2.4) and f(4.5) and estimate the error.