AM-1668

Maxima and minima problems

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

1. $h=\dfrac{150}{r^2}-\dfrac{2}{3}r$
2. $h=\dfrac{150}{r^2}+\dfrac{2}{3}r$
3. $h=\dfrac{150}{r}-\dfrac{2}{3}r^2$
4. $h=\dfrac{150}{r^2}-\dfrac{4}{3}r$

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