Ch 1 · Ratio, Proportion, Indices and Logarithms

5 concept points · 5 formulas · 4 exam-critical points.

🧮 Formula sheet

1. log(mn) = log m + log n
2. log(m/n) = log m − log n
3. log mⁿ = n log m
4. log_a b = log b / log a (change of base)
5. Mean Proportional between a and b = √(ab)