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September 19, 2025, 10:41:13 pm
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Author Topic: composite functions help II  (Read 956 times)  Share 

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jag

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composite functions help II
« on: February 10, 2009, 09:30:10 pm »
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The functions f and g are defined by f : R --> R,f(x) = and g: {x:x more than or equal to 0} -----> , where g(x) =

(a) explain why g o f does not exist.
(b) Find f o g
« Last Edit: February 10, 2009, 09:32:05 pm by jag »
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dekoyl

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Re: composite functions help II
« Reply #1 on: February 10, 2009, 09:40:43 pm »
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a) does not exist as the range of f(x) [-2,) is not within the domain of g(x) .
b)

Is that right, jag?
« Last Edit: February 10, 2009, 09:47:21 pm by dekoyl »
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jag

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Re: composite functions help II
« Reply #2 on: February 10, 2009, 10:33:31 pm »
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yep =]
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Accounting 40
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English 34
It Applications 32
Methods 30

ENTER: 90.75

Mao

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Re: composite functions help II
« Reply #3 on: February 10, 2009, 11:23:54 pm »
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umm... this question is exactly the same as the one you posted in the other thread. I suggest you go edit the first post of the other thread [yes, you can do that, the edit button is on the right].

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