A-level Maths · Exponentials and logarithms

Laws of logarithms

Combine logarithms with the power, product and quotient laws to reach a single exact number.

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Question 1

Without using a calculator, find the exact value of 2log⁡515−log⁡592\log_{5} 15 - \log_{5} 9.

You can type 4.53, 3.2e-5, 3.2 × 10^-5 or 7/3.

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