Consider the function 20 f(x) = x5 +21x - 125 3 (a) Find an interval of width 1 within which a root lies. Show that this root is unique. (b) If the bisection algorithm is performed to find the root on this interval [ao, bo] and the 0th iterate is co ao + bo how many iterations will guarantee that the error is less " 2 than 10-3?

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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Consider the function
20
f(x) = x5 _
-x³ +21x - 125
3
(a) Find an interval of width 1 within which a root lies. Show that this root is unique.
(b) If the bisection algorithm is performed to find the root on this interval [ao, bo] and
the 0th iterate is co=
ao + bo
how many iterations will guarantee that the error is less
"
2
than 10-3?
Transcribed Image Text:Consider the function 20 f(x) = x5 _ -x³ +21x - 125 3 (a) Find an interval of width 1 within which a root lies. Show that this root is unique. (b) If the bisection algorithm is performed to find the root on this interval [ao, bo] and the 0th iterate is co= ao + bo how many iterations will guarantee that the error is less " 2 than 10-3?
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