Cone of Light Problem: A spotlight shines on the wall, forming a cone of light in the
Chapter 4, Problem 12(choose chapter or problem)
Cone of Light Problem: A spotlight shines on the wall, forming a cone of light in the air(Figure 4-9j). The light is being moved closer tothe wall, making the cones altitude decrease by 6 ft/min. At the same time, the light is beingrefocused, making the radius increase by7 ft/min. At the instant when the altitude is3 ft and the radius is 8 ft, is the volume of thecone increasing or decreasing? How fast?
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