Paper 1 · Indices and Logs
⏱ Tested in 3 exam questions since 2023
Lesson 4 of 8
Indices and Logs 4 – Changing the base
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- Change a log's base with logₐ(x) = logb(x)/logb(a) — go down, not up
- Unify mixed-base log equations so the product/quotient rules can apply
- Substitute y = log₂(x) to turn a mixed-base equation into a quadratic
Most recent exam questions
- 2024 P1 Q3(c) — deferred
- 2023 P1 Q2(b)(i) — deferred
- 2023 P1 Q2(b)(ii) — deferred
- 2023 P1 Q2(b)(iii) — deferred
- 2023 P1 Q3(b)
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