Inverse cube-root relation

Inverse cube-root relation

Secondary 2
TGM Original Questions

The quantity \(a\) is inversely proportional to \(4\sqrt[3]{b}\), and \(a=3\) when \(b=8\). Find

  1. the equation connecting \(a,b\), and
  2. \(b\) when \(a=12\).

Solution:

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Answer:(a) \(a=\frac6{\sqrt[3]{b}}\); (b) \(b=\frac18\).

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