Rewriting a logarithmic function

Complex numbers, rational functions, logarithms, sequences and series, matrix operations, etc.
crescentcitycid
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Rewriting a logarithmic function

Postby crescentcitycid » Sun Feb 27, 2011 10:28 pm

If I had the function R=2.3log(A+3000)-5.1 and I wanted solve for A in terms of R, would A=10((R/2.3)-5.1))-3000 be correct?

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stapel_eliz
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Postby stapel_eliz » Sun Feb 27, 2011 10:40 pm

crescentcitycid wrote:If I had the function R=2.3log(A+3000)-5.1 and I wanted solve for A in terms of R, would A=10((R/2.3)-5.1))-3000 be correct?

No; the solution method does not start with dividing through by 2.3.

Try doing each individual step carefully. :wink:

crescentcitycid
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Re: Rewriting a logarithmic function

Postby crescentcitycid » Sun Feb 27, 2011 10:57 pm

Ah, I should start with adding the 5.1 then?

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stapel_eliz
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Postby stapel_eliz » Mon Feb 28, 2011 12:50 am

crescentcitycid wrote:Ah, I should start with adding the 5.1 then?

Yes.


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