Discussion
Lnab=
Answer: A
The product rule for logarithms holds in any base, including base \( e \).
\[ \ln(ab) = \ln a + \ln b \]
The companion rules are \( \ln\tfrac{a}{b} = \ln a - \ln b \) and \( \ln a^{n} = n\ln a \). A product inside becomes a sum outside - never a product of the two logarithms.
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