(d) How large should we take n in order to guarantee that the Simpson's Rule approximation for 1¹6 g(x) dx would be accurate to within 10-6 ?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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PART D PLEASE

**Problem 4**

(a) A table of values of a function \( g \) is given. Use Simpson’s Rule to estimate \( \int_{0}^{1.6} g(x) \, dx \).

\[
\begin{array}{|c|c|c|c|}
\hline
x & g(x) & x & g(x) \\
\hline
0.0 & 12.1 & 1.0 & 11.2 \\
0.2 & 11.6 & 1.2 & 11.6 \\
0.4 & 11.3 & 1.4 & 12.0 \\
0.6 & 11.1 & 1.6 & 12.2 \\
0.8 & 11.7 & & \\
\hline
\end{array}
\]

(b) If \(-6 \leq g^{(4)}(x) \leq 2\) for \(0 \leq x \leq 1.6\), estimate the error involved in the approximation in part (a).

(c) What is an average value of \( g(x) \) on \(0 \leq x \leq 1.6\)?

(d) How large should we take \(n\) in order to guarantee that the Simpson’s Rule approximation for \(\int_{0}^{1.6} g(x) \, dx\) would be accurate to within \(10^{-6}\)?
Transcribed Image Text:**Problem 4** (a) A table of values of a function \( g \) is given. Use Simpson’s Rule to estimate \( \int_{0}^{1.6} g(x) \, dx \). \[ \begin{array}{|c|c|c|c|} \hline x & g(x) & x & g(x) \\ \hline 0.0 & 12.1 & 1.0 & 11.2 \\ 0.2 & 11.6 & 1.2 & 11.6 \\ 0.4 & 11.3 & 1.4 & 12.0 \\ 0.6 & 11.1 & 1.6 & 12.2 \\ 0.8 & 11.7 & & \\ \hline \end{array} \] (b) If \(-6 \leq g^{(4)}(x) \leq 2\) for \(0 \leq x \leq 1.6\), estimate the error involved in the approximation in part (a). (c) What is an average value of \( g(x) \) on \(0 \leq x \leq 1.6\)? (d) How large should we take \(n\) in order to guarantee that the Simpson’s Rule approximation for \(\int_{0}^{1.6} g(x) \, dx\) would be accurate to within \(10^{-6}\)?
Expert Solution
Step 1

The error bound in composite Simpson's 1/3rd rule for approximating abf(x)dx is given by

h4180(b-a) M

where h=b-an and M=Maxξ[a,b] |f4(ξ)|.

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