The root of f(x) = 4r²-3 is to be used to approximate √3/4 numerically. (i) Justify why the solution of the fixed point formula z=4r²+r-3 is a root of f(x) = 0. (ii) Determine the interval of convergence of the fixed point in (i) above.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 43E
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PLEASE NOTE: Unless otherwise stated, ALL arguments of trigonometric functions are in radians.
QUESTION 1
(a) The root of f(x) = 4r²-3 is to be used to approximate √3/4 numerically.
(i) Justify why the solution of the fixed point formula z = 4r²+r-3 is a root of f(x) = 0.
(ii) Determine the interval of convergence of the fixed point in (i) above.
(b) Perform ONE complete iteration of Newton's method for two variables for the nonlinear system
using (1, 1) as the initial solution.
xy + 2y = 1
Transcribed Image Text:PLEASE NOTE: Unless otherwise stated, ALL arguments of trigonometric functions are in radians. QUESTION 1 (a) The root of f(x) = 4r²-3 is to be used to approximate √3/4 numerically. (i) Justify why the solution of the fixed point formula z = 4r²+r-3 is a root of f(x) = 0. (ii) Determine the interval of convergence of the fixed point in (i) above. (b) Perform ONE complete iteration of Newton's method for two variables for the nonlinear system using (1, 1) as the initial solution. xy + 2y = 1
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