For n e N, define fn : [-1, 1] → [0, 1] by fn(x) = (1 – x2)". For all 8 e (0,1), define Is = [-1, –8] U [8, 1]. (a) Prove that (fn)nEN Converges pointwise on [-1,1]. (b) Provo thet (f nonvomgog uniformly on I for oll & , 0 but not

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter6: Exponential And Logarithmic Functions
Section6.4: Graphs Of Logarithmic Functions
Problem 60SE: Prove the conjecture made in the previous exercise.
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Please solve 2(a)

For n e N, define fn : [-1, 1] → [0, 1] by fn(x) = (1 – x2)". For all 8 e (0,1), define
Is = [–1, –ô] U [8, 1].
(a)
(Ъ)
Prove that (fn)nEN Converges pointwise on (-1, 1].
Prove that (fn)nɛN Converges uniformly on Iz for all d > 0, but not on [-1, 1].
Transcribed Image Text:For n e N, define fn : [-1, 1] → [0, 1] by fn(x) = (1 – x2)". For all 8 e (0,1), define Is = [–1, –ô] U [8, 1]. (a) (Ъ) Prove that (fn)nEN Converges pointwise on (-1, 1]. Prove that (fn)nɛN Converges uniformly on Iz for all d > 0, but not on [-1, 1].
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