#logarithms

44 messages ยท Page 1 of 1 (latest)

potent zenithBOT
unkempt palm
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i taught of changing bases inside out but that did not work

gusty oracle
unkempt palm
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the answer > 1

gusty oracle
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wait that won't be useful

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sorry

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when x is between b and b^2

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what can you say about log_b(x) ?

unkempt palm
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hmmmm

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x^2 will be between b^2 and b^4?

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@gusty oracle

gusty oracle
unkempt palm
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what answer should I say?

gusty oracle
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log_b is the reciprocal of x -> b^x

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so x will be between 1 and 2

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you compare the exponents

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so what x^2 equals is not defined here

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so your original answer is correct

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we'll get some log(negative) at some point

unkempt palm
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we do not have to evaluate it we can just think about what values x have to be?

gusty oracle
unkempt palm
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oh wait nvm

gusty oracle
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it's not an integer

gusty oracle
unkempt palm
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yes

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so it will get negative

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in the next one

gusty oracle
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yes

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so the next one is not defined

unkempt palm
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ooh

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that makes sense

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it looks complicated but now it seems a lot easier

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so its not defined and there are no real values?

gusty oracle
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yes

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so 0 is correct

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well it could be defined in the complex world but real values cannot give complex numbers when squared

unkempt palm
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๐Ÿ˜Ž

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sounds good

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thanks

gusty oracle
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np ๐Ÿ˜„

unkempt palm
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I have one more than I am not sure how to do

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I realize that they are in same base, base 10, but I looked back at my properties and I wasn't sure which one to do because they are seperate equations