4. This question has two independent parts. (a) Let f : R→R be continuous and periodic with period T. Prove that there exists an ro T in R such that f( xo + 5) = f(r0). 2 (b) Let f: R R be an integer valued continuous function, that is f(R) C Z. Show that f must be constant.

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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4. This question has two independent parts.
(a) Let f : R → R be continuous and periodic with period T. Prove that there exists an ro
in R such that f( xo +
T
= f(xo).
(b) Let f : R R be an integer valued continuous function, that is f(R) C Z. Show that
f must be constant.
Transcribed Image Text:4. This question has two independent parts. (a) Let f : R → R be continuous and periodic with period T. Prove that there exists an ro in R such that f( xo + T = f(xo). (b) Let f : R R be an integer valued continuous function, that is f(R) C Z. Show that f must be constant.
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