AM-1672

Maxima and minima problems

A Math · Secondary 4 · Hard · Maxima and minima problems

1. $h = \dfrac{120 - \tfrac{2}{3}r^3}{r^2}$
2. $h = \dfrac{120 + \tfrac{2}{3}r^3}{r^2}$
3. $h = \dfrac{120r^2 - \tfrac{2}{3}r^3}{\pi}$
4. $h = \dfrac{120}{\pi r^2} - \dfrac{2}{3}r$

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