(i) Show first that x + V1+ x2 = 25/19 + 1 = 132/475. %3D

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter4: Polynomial And Rational Functions
Section4.3: Zeros Of Polynomials
Problem 57E
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Numerical Analysis & it’s applications
1. (Floating-Point Arithmetic, Taylor Polynomials, Horner's Method;
hyperbolic arcsine function
It is known that the ninth Taylor polynomial T(x) of the
f(x) = arcsinh(x) = In(x + V1+ x2)
centered at zero is
1
3
T(x) = x -
6
35
+
1152
40
112
In particular, one can approximate the values of the hyperbolic arcsine about zero by the corresponding values of this Taylor polynomial,
In(x + V1+x²2) = T(x),
provided that |x| is small enough. Based on this fact, realize the following plan of obtaining an approximation of In(25/19).
(i) Show first that
x + V1+x2 = 25/19 + x = 132/475.
Thus in view of (1.1) we can approximate In(25/19) by T(132/475):
In(25/19) z T(132/475).
Transcribed Image Text:1. (Floating-Point Arithmetic, Taylor Polynomials, Horner's Method; hyperbolic arcsine function It is known that the ninth Taylor polynomial T(x) of the f(x) = arcsinh(x) = In(x + V1+ x2) centered at zero is 1 3 T(x) = x - 6 35 + 1152 40 112 In particular, one can approximate the values of the hyperbolic arcsine about zero by the corresponding values of this Taylor polynomial, In(x + V1+x²2) = T(x), provided that |x| is small enough. Based on this fact, realize the following plan of obtaining an approximation of In(25/19). (i) Show first that x + V1+x2 = 25/19 + x = 132/475. Thus in view of (1.1) we can approximate In(25/19) by T(132/475): In(25/19) z T(132/475).
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