The intensity of illumination at any point from a light source is proportional to the square of the reciprocal of the distance be-tween the point and the light source. Two lights, one having an intensity eight times that of the other, are 6 m apart. Along the line segment between the two light sources, how far from the stronger light is the total illumination least?
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The intensity of illumination at any point from a light source is proportional to the square of the reciprocal of the distance be-tween the point and the light source. Two lights, one having an intensity eight times that of the other, are 6 m apart. Along the line segment between the two light sources, how far from the stronger light is the total illumination least?
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