Differentiating Logarithms - A-Level?

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beachpanda
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Does anyone know if we need to be able to differentiate log functions such as log10(x) for A-Level?

I'm on Edexcel and my textbook doesn't mention it? Only ln(x)
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MalcolmX
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have you had a look at the syllabus pdf?
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mqb2766
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(Original post by beachpanda)
Does anyone know if we need to be able to differentiate log functions such as log10(x) for A-Level?

I'm on Edexcel and my textbook doesn't mention it? Only ln(x)
It's easy to change log base ( from 10 to e) and hence use the natural log derivative, but can't say for definite if this is explicitly on the syllabus.
https://www.mathsisfun.com/algebra/e...ogarithms.html
Last edited by mqb2766; 1 month ago
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DFranklin
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Write log_10(x) in terms of ln(x) and you're basically done.
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Melvin Guna
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(Original post by beachpanda)
Does anyone know if we need to be able to differentiate log functions such as log10(x) for A-Level?

I'm on Edexcel and my textbook doesn't mention it? Only ln(x)
use change of base to convert to Ln, see below
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