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  #1  
Old 11-11-2007, 05:48 PM
CoolWave CoolWave is offline
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Default simple algebra domain question
please help
find the domain of the rational function

x+9
--------
x^2+25
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  #2  
Old 11-11-2007, 06:10 PM
evank15 evank15 is offline
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Default Re: simple algebra domain question
all reals i'm pretty sure. i would think it has to do with possible problems in the denominator, of which there are none here.
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  #3  
Old 11-11-2007, 06:13 PM
bigpooch bigpooch is offline
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Default Re: simple algebra domain question
This should be R = {all reals}, if the context is real
functions; otherwise, the complex numbers without +/-5i.
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