Ch 1 · Ratio, Proportion, Indices and Logarithms

🧮 Formula sheet

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