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ScotlandMathsQuick questions

Expressions and Functions

Quick questions on Exponentials and logarithms: laws and experimental data - SQA Higher Maths

3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.

What is q1?
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Simplify log⁡381−log⁡39\log_3 81 - \log_3 9. [2 marks]
What is q2?
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Solve 2x=502^x = 50, giving your answer to two decimal places. [3 marks]
What is q3?
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Express 2log⁡a3+log⁡a52\log_a 3 + \log_a 5 as a single logarithm. [2 marks]

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