tions gn [0, 1] → R given by : Consider the sequence of func- In (x)= = lim gn- (a) Show that (gn) converges uniformly on [0, 1] and find g Show that g is differentiable and compute g'(x) for all r = [0, 1]. (b) Show that (gn) converges pointwise on [0, 1]. Is the convergence uni- form? Let h= lim gn, and compare h and g'. Are they the same? n

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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**Sequence of Functions and Uniform Convergence**

Consider the sequence of functions \( g_n : [0, 1] \rightarrow \mathbb{R} \) given by

\[ g_n(x) = \frac{x^n}{n}. \]

### (a)

- **Task**: Show that \( (g_n) \) converges uniformly on \([0, 1]\) and find \( g = \lim g_n \).
- **Additional Points**:
  - Demonstrate that \( g \) is differentiable.
  - Compute \( g'(x) \) for all \( x \in [0, 1] \).

### (b)

- **Task**: Show that \( (g'_n) \) converges pointwise on \([0, 1]\).
- **Questions**:
  - Is the convergence uniform?
  - Let \( h = \lim g'_n \) and compare \( h \) and \( g' \). Are they the same?
Transcribed Image Text:**Sequence of Functions and Uniform Convergence** Consider the sequence of functions \( g_n : [0, 1] \rightarrow \mathbb{R} \) given by \[ g_n(x) = \frac{x^n}{n}. \] ### (a) - **Task**: Show that \( (g_n) \) converges uniformly on \([0, 1]\) and find \( g = \lim g_n \). - **Additional Points**: - Demonstrate that \( g \) is differentiable. - Compute \( g'(x) \) for all \( x \in [0, 1] \). ### (b) - **Task**: Show that \( (g'_n) \) converges pointwise on \([0, 1]\). - **Questions**: - Is the convergence uniform? - Let \( h = \lim g'_n \) and compare \( h \) and \( g' \). Are they the same?
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