(n) Find the domain of fog in terms of the domain of f and g as a preimage. (0) Show, if A is any subset of the codomain of g, then (f o g)-1(A) = g¬'(f-1(A)). (p) Show, if A is any subset of the domain of g, then (f og)(A) = f(g(A)).

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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Suppose f and g are both functions.

 

(n) Find the domain of fog in terms of the domain of f and g as a preimage.
(0) Show, if A is any subset of the codomain of g, then (f o g)-(A) = g¬'(f-1(A)).
(p) Show, if A is any subset of the domain of g, then (f o g)(A) = f(g(A)).
Transcribed Image Text:(n) Find the domain of fog in terms of the domain of f and g as a preimage. (0) Show, if A is any subset of the codomain of g, then (f o g)-(A) = g¬'(f-1(A)). (p) Show, if A is any subset of the domain of g, then (f o g)(A) = f(g(A)).
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