Ch 1 · Ratio, Proportion, Indices and Logarithms

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

🗺️ Chart summary

Ratio a:b
        |
   Compounded -> ac:bd
   Duplicate  -> a²:b²
   Sub-dup    -> √a:√b
        |
        v
   Proportion: a:b :: c:d