Use the following outline to prove the theorem that every continuous function on a closed finite interval [a, b] must be bounded: Suppose false. Explain why |f| is not bounded above by any n E N, and why there exists xn E [a, b] such that \f (xn)| > n. Next show how you apply the Bolzano-Weierstrass Theorem to xn to deduce a contradiction of the fact that f E C[a, b].)

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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• Ose the following outline to prove the theorem that every continuous function on a closed finite
interval [a, b] must be bounded: Suppose false. Explain why |f| is not bounded above by any n EN,
and why there exists xn E [a, b] such that
|f (xn)| > n.
Next show how you apply the Bolzano-Weierstrass Theorem to rn to deduce a contradiction of the
fact that f e C [a, b].)
fc Rla b (Hint: Use the
Transcribed Image Text:• Ose the following outline to prove the theorem that every continuous function on a closed finite interval [a, b] must be bounded: Suppose false. Explain why |f| is not bounded above by any n EN, and why there exists xn E [a, b] such that |f (xn)| > n. Next show how you apply the Bolzano-Weierstrass Theorem to rn to deduce a contradiction of the fact that f e C [a, b].) fc Rla b (Hint: Use the
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