Question: Find the illumination on a surface by three light sources, each with intensity 125 m, located at 1.85 m, 1.92 m, and 2.43 m from

Find the illumination on a surface by three light sources, each with intensity 125 ℓm, located at 1.85 m, 1.92 m, and 2.43 m from the surface, respectively.

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