Question: Two factories are located at the coordinates (-x, 0) and (x, 0), and their power supply is at (0, h) (see figure). Find y such

Two factories are located at the coordinates (-x, 0) and (x, 0), and their power supply is at (0, h) (see figure). Find y such that the total length of power line from the power supply to the factories is a minimum.

(-x, 0) y (0, h) y (x, 0) X

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