Suppose that function • f(x) has domain XE [-1,4) U (4, 00) g(x) has domain x E (-5,2) U (2,9]. 1. The domains of (f +g)(x). (g-f)(x), and (gf)(x) are all the same. Determine this domain, writing your answer using interval notation. Hint: Find the intersection of the two domains above (bulleted). It might be helpful to draw number lines. 2. From the function g(x), suppose g(7) = 0. Determine the domain of (O*). Write your answer using interval notation.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Suppose that function
• f(x) has domain x E [-1,4) U (4, 00)
g(x) has domain Xx E (-5,2) U (2,9].
1. The domains of (f + g)(x). (g -f)(x), and (gf)(x) are all the same.
Determine this domain, writing your answer using interval notation. Hint:
Find the intersection of the two domains above (bulleted). It might be helpful
to draw number lines.
2. From the function g(x), suppose g(7) = 0. Determine the domain of
() (x). witey
your answer using interval notation.
Transcribed Image Text:Suppose that function • f(x) has domain x E [-1,4) U (4, 00) g(x) has domain Xx E (-5,2) U (2,9]. 1. The domains of (f + g)(x). (g -f)(x), and (gf)(x) are all the same. Determine this domain, writing your answer using interval notation. Hint: Find the intersection of the two domains above (bulleted). It might be helpful to draw number lines. 2. From the function g(x), suppose g(7) = 0. Determine the domain of () (x). witey your answer using interval notation.
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