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Given the slant length

of a right circular cone, find the value of the angle

between the

axis and a generator of the cone that maximizes the volume

of the cone with that slant length.

This is a typical maximization problem encountered by calculus students as an application of differentiation.

Reference

[1] F. Curmi, J. Spiteri, and C. Vassallo, Pure Mathematics 1B, Malta: Progress Press, 2006 p. 100, example 2.20.

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Maximizing the Volume of a Right Circular Cone with Given Slant Length