a) Find the domain of f, g, f + g, f – g fg, ff, f/ g. and g/f. b) Find (f + g)(x), (f – g)(x), (fg)(x), (ff)(x), (f/g)(x), and (g/f) (x). 17. f(x) = 2x + 3, g(x) = 3 – 5x

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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a) Find the domain of f, g, f + g, f – & fg, ff, f/ g
b) Find (f + g)(x), (f – g)(x), (fg)(x), (ff)(x),
For each pair of functions in Exercises 17–32:
15. (8
and g/f.
Find f+ g)(x), (f – g)(x), (fg)(x), (ff)(x),
(f/8)(x), and (g/f)(x).
17. f(x) = 2x + 3, g(x) = 3 – 5x
%3D
18. f(x) = -x + 1, g(x) = 4x – 2
19. f(x) = x – 3, g(x) = Vx + 4
20. f(x) = x + 2, g(x) = Vx – 1
21. f(x) = 2x – 1, g(x) = – 2x²
22. f(x) = x² – 1, g(x) = 2x + 5
23. f(x) = Vx – 3, g(x) :
= Vx + 3
Transcribed Image Text:a) Find the domain of f, g, f + g, f – & fg, ff, f/ g b) Find (f + g)(x), (f – g)(x), (fg)(x), (ff)(x), For each pair of functions in Exercises 17–32: 15. (8 and g/f. Find f+ g)(x), (f – g)(x), (fg)(x), (ff)(x), (f/8)(x), and (g/f)(x). 17. f(x) = 2x + 3, g(x) = 3 – 5x %3D 18. f(x) = -x + 1, g(x) = 4x – 2 19. f(x) = x – 3, g(x) = Vx + 4 20. f(x) = x + 2, g(x) = Vx – 1 21. f(x) = 2x – 1, g(x) = – 2x² 22. f(x) = x² – 1, g(x) = 2x + 5 23. f(x) = Vx – 3, g(x) : = Vx + 3
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