Let f: R → R be a function, let function g: (-∞, 0) U (0, ∞) → R be defined by g(x) = 1, and let function h: [0, ∞) → R be defined by h(x)=√x. A. In terms of f(x), find an expression for the functions (gof)(x), (hof)(x), (gohof)(x), (hogof)(x). B. Henceforth, let P be the collection of all x for which f(x) is positive, let N be the collection of all x for which f(x) is negative, and let Z be the collection of all x for which f(x) is zero. The natural domain of (gof)(x) is PUN. Explain. C. The natural domain of (ho f) (x) is PUZ. Explain.

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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1. Let f: R → R be a function, let function g: (-∞, 0) U (0, ∞) → R be defined by g(x) = 1, and let function h: [0, ∞) → R be defined by
h(x)=√x.
A. In terms of f(x), find an expression for the functions (g ○ f) (x), (h ○ ƒ) (x), (g○h○ ƒ) (x), (h○g○f) (x).
B. Henceforth, let P be the collection of all x for which f(x) is positive, let N be the collection of all x for which f(x) is negative, and let Z be the
collection of all x for which f(x) is zero. The natural domain of (g o ƒ) (x) is PU N. Explain.
C. The natural domain of (h o ƒ) (x) is PU Z. Explain.
Transcribed Image Text:1. Let f: R → R be a function, let function g: (-∞, 0) U (0, ∞) → R be defined by g(x) = 1, and let function h: [0, ∞) → R be defined by h(x)=√x. A. In terms of f(x), find an expression for the functions (g ○ f) (x), (h ○ ƒ) (x), (g○h○ ƒ) (x), (h○g○f) (x). B. Henceforth, let P be the collection of all x for which f(x) is positive, let N be the collection of all x for which f(x) is negative, and let Z be the collection of all x for which f(x) is zero. The natural domain of (g o ƒ) (x) is PU N. Explain. C. The natural domain of (h o ƒ) (x) is PU Z. Explain.
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