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anonymous
 4 years ago
find f(x) domain
\[f(x)=\log _{x3}(x ^{2}1)/(x ^{2}4)\]
anonymous
 4 years ago
find f(x) domain \[f(x)=\log _{x3}(x ^{2}1)/(x ^{2}4)\]

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amistre64
 4 years ago
Best ResponseYou've already chosen the best response.3a few issues that might influence domain are an x under the fraction the x in the base notation, dont think we can have log_0 and the x on the log argument itself; nothing 0 and under is good

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.3well, lets start with the log argument part: x^2  1 <= 0 is bad x^2 <= 1 x <= 1 , or x >=1 would be offlimits

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.3so we are defined by just that to be between 1 and 1

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.3nothing in the interval makes the bottom look bad so lets try to see if theres anything in there that would make the base part go bad

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.3there might be some issue in a base for SOME numbers

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.3for instance: log2(8) = y 8 = (2)^y is not defined

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.3http://xa.yimg.com/kq/groups/4750694/1645343743/name/Negative+Bases+for+Logs.pdf

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0the domain is this \[(3,4)\cup(4,+\infty)\]

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.3i messed up on my x^2  1 dint i :)

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0amir you defeated the 100level guy

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.3ive been defeated plenty of times ;)

amistre64
 4 years ago
Best ResponseYou've already chosen the best response.3wolfram would have told me if I was wrong in the end im sure of it lol

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0but i've done that with my self if you have a lot of time i'll show you

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0amir don't you want to give a question MedaL

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[{((3 + x) (1 + x^2))/(4 + x^2)} \]
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