Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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Question
7. Approximate V(2.03)2 + (0.8)² + (2.1)² using a linear approximation.?
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Transcribed Image Text:7. Approximate V(2.03)2 + (0.8)² + (2.1)² using a linear approximation.?
Expert Solution
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Step 1

To approximate:

2.032+0.82+2.12

Consider a function,

fx,y,z=x2+y2+z2

The linear approximation of a function f(x, y, z) at point (x0, y0, z0) is given by

Lx,y,z=fx0,y0,z0+fxx0,y0,z0x-x0+fyx0,y0,z0y-y0+fzx0,y0,z0z-z0

Formulas used:

ddxxn=nxn-1ddxconstant=0Chain rule of differentiation,ddxfgx=f'gx·g'x

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