Mathematics 9709 · AS & A Level · Logarithmic and exponential functions

Logarithmic and exponential functions — practice question

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Find $x$ from the equation $2^{3x-1} = 5(3^{1-x})$. Write your answer in the form $\ln a \over \ln b$ where $a$ and $b$ are integers.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Employ the laws of logarithms for a power or product” …

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