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liliy
Group Title
find the domain and the inverse of the function:
f(x)=ln(x+2)3
 one year ago
 one year ago
liliy Group Title
find the domain and the inverse of the function: f(x)=ln(x+2)3
 one year ago
 one year ago

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satellite73 Group TitleBest ResponseYou've already chosen the best response.0
domain: you can only take the log of a positive number, so start with \(x+2>0\) and solve for \(x) in one step
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.0
for the inverse, set \[x=\ln(y+2)3\] and solve for \(y\)
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.0
this takes three steps \[x=\ln(y+2)3\] \[x+3=\ln(y+2)\] \[e^{x+3}=y+2\] \[y=e^{x+3}2\]
 one year ago

jaersyn Group TitleBest ResponseYou've already chosen the best response.0
Hey satellite, just out of curiosity, what do you do for a living? Sorry to barge in here, but you don't accept messages from nonfans apparently
 one year ago

liliy Group TitleBest ResponseYou've already chosen the best response.0
so is the domain z+, or R ?
 one year ago

satellite73 Group TitleBest ResponseYou've already chosen the best response.0
neither
 one year ago

liliy Group TitleBest ResponseYou've already chosen the best response.0
but using an ln graph, anything less than ln(1) is undefined....
 one year ago
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