Mathematics, 06.11.2020 07:20 joshhowze1896
The reflector of a flashlight is in the shape of a parabolic surface. The casting has a diameter of 8 inches and a depth of 3 inches. How far from the vertex should the light bulb be placed
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The reflector of a flashlight is in the shape of a parabolic surface. The casting has a diameter of...
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