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**Optimization problem**

Find the dimensions of the rectangle of largest area which can be inscribed in the closed region bounded by the x-axis, y-axis, and graph of f(x)=8-x^{3}.

If x is the width of the rectangle, we can conclude that 0<x<=2. Then the height of the rectangle is f(x). So the function that needs to be optimized is g(x)=x*f(x)=x(8-x^{3}).

If you use DeadLine to find extrema, you will get x=1.25992105, which is the answer to the problem.

**Another optimization problem:**

A movie screen on a wall is 20 feet high and 10 feet above the floor. At what distance x from the front of the room should you position yourself so that the viewing angle of the movie screen is as large as possible ? See the solution.

Solve optimization problems, find maximum and minimum of a function using DeadLine.