(n) If A is a subset of the codomain of f, explain why f(f-1(A)) is a subset of A. (0) Give an example of a function f and subset of its codomain A for which A is not a subset of f(f-"(A)). (p) Find the domain of f og in terms of the domain of f and g as a preimage.
(n) If A is a subset of the codomain of f, explain why f(f-1(A)) is a subset of A. (0) Give an example of a function f and subset of its codomain A for which A is not a subset of f(f-"(A)). (p) Find the domain of f og in terms of the domain of f and g as a preimage.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Suppose f and g are both functions.
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