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

Logarithmic and exponential functions — practice question

Suppose that $5^{3x} = 7^{4y}$.
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Use logarithms to determine the value of $\frac{x}{y}$ correct to 4 significant figures.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Apply the logarithm power law correctly at least once” …

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