Beehives In a beehive each cell is a regular hexagonal prism, as shown in the figure. The amount of wax W in the cell depends on the apex angle θ and is given by
W = 3.02 – 0.38 cot θ + 0.65 csc θ
Bees instinctively choose θ so as to use the least amount of wax possible.
(a) Use a graphing device to graph W as a function of θ for 0 < θ < π.
(b) For what value of θ does W have its minimum value? [Note: Biologists have discovered that bees rarely deviate from this value by more than a degree or two.]