Let f [a, b] → R be Riemann integrable (and in particular, bounded on [a, b]). For x = [a, b], let F(x) = f(t)dt. (i) Prove that F is continuous on [a, b].

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Let \( f: [a, b] \to \mathbb{R} \) be Riemann integrable (and in particular, bounded on \([a, b]\)). For \( x \in [a, b] \), let 

\[
F(x) = \int_{a}^{x} f(t) \, dt.
\]

(i) Prove that \( F \) is continuous on \([a, b]\).

(ii) If \( f \) is continuous at \( x_0 \), prove that \( F \) is differentiable at \( x_0 \), and \( F'(x_0) = f(x_0) \).
Transcribed Image Text:Let \( f: [a, b] \to \mathbb{R} \) be Riemann integrable (and in particular, bounded on \([a, b]\)). For \( x \in [a, b] \), let \[ F(x) = \int_{a}^{x} f(t) \, dt. \] (i) Prove that \( F \) is continuous on \([a, b]\). (ii) If \( f \) is continuous at \( x_0 \), prove that \( F \) is differentiable at \( x_0 \), and \( F'(x_0) = f(x_0) \).
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(ii) please!

Let ƒ : [a, b] → R be Riemann integrable (and in particular, bounded on [a, b]).
For x = [a, b], let F(x) = f f(t)dt.
(i) Prove that F is continuous on [a, b].
(ii) If f is continuous at xo, prove that F is differentiable at xo, and F'(xo)
f(xo).
=
Transcribed Image Text:Let ƒ : [a, b] → R be Riemann integrable (and in particular, bounded on [a, b]). For x = [a, b], let F(x) = f f(t)dt. (i) Prove that F is continuous on [a, b]. (ii) If f is continuous at xo, prove that F is differentiable at xo, and F'(xo) f(xo). =
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