Calculus with Applications (10th Edition)

Published by Pearson
ISBN 10: 0321749006
ISBN 13: 978-0-32174-900-0

Chapter 10 - Differential Equations - 10.3 Euler's Method - 10.3 Exercises - Page 550: 3

Answer

$y(0.6)$ mean $x=0.6 \rightarrow y_{7} \approx 2.333$

Work Step by Step

We are given $\frac{dy}{dx}=1+y$ so that $g(x,y)=1+y$ Since $x=0, y=2$ $g(x_{0},y_{0})=1+2=3$ and $y_{1}=y_{0}+g(x_{0},y_{0})h=2+3\times0.1=2.3$ Now $x_{1}=0.1, y_{1}=2.3$ and $g(x_{1},y_{1})=1+2.3=3.3$ Then $y_{2}=2+3.3\times0.1=2.33$ $y_{3}=2+(3.33)\times0.1=2.333$ $y_{4}=2+(3.333)\times0.1=2.3333$ $y_{5}=2+(3.3333)\times0.1=2.33333$ $y_{6}=2+(3.33333)\times0.1=2.333333$ $y_{7}=2+(3.333333)\times0.1=2.3333333$ $y(0.6)$ mean $x=0.6 \rightarrow y_{7}=2.3333333 \approx 2.333$
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