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hard problem

A movie screen on wall is 20 feet high and 10 feet above the floor.At what distance X from the front of the room should you be to have a viewing angle θ of the movie screen is as large as possible

Note by احمد النقيب
2 years ago

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See this problem. Calvin Lin Staff · 2 years ago

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@Calvin Lin Please figure out mine frist احمد النقيب · 2 years ago

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