Suppose f is defined on the open interval I and a E I. The Taylor polynomial Pak is well defined provided merely that f is of class Ck-1 on I and f(k)(a) exists. Show that under these hypotheses, the remainder Ra,k = f - Pak still satisfies limp-0 Ra,k(h)/hk = 0. (Hint: Apply l'Hôpital's rule k – 1 times, then recall precisely what it means for flk)(a) to exist.) %3D

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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8. Suppose f is defined on the open interval I and a E I. The Taylor polynomial
Pa,k is well defined provided merely that f is of class Ck-1 on I and f(k) (a)
exists. Show that under these hypotheses, the remainder Ra,k = f - Pa,k still
satisfies lim,0 Ra,t(h)/h* = 0. (Hint: Apply l'Hôpital's rule k
then recall precisely what it means for flk)(a) to exist.)
1 times,
%3D
|
Transcribed Image Text:8. Suppose f is defined on the open interval I and a E I. The Taylor polynomial Pa,k is well defined provided merely that f is of class Ck-1 on I and f(k) (a) exists. Show that under these hypotheses, the remainder Ra,k = f - Pa,k still satisfies lim,0 Ra,t(h)/h* = 0. (Hint: Apply l'Hôpital's rule k then recall precisely what it means for flk)(a) to exist.) 1 times, %3D |
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