Question: Find the illumination on a surface by three light sources, each with intensity 150 m located at distances of 2.00 m, 2.70 m, and 2.98

Find the illumination on a surface by three light sources, each with intensity 150 ℓm located at distances of 2.00 m, 2.70 m, and 2.98 m from the surface, respectively.

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