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Statement of a problem № 17

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From point A located on a highway (Fig. 1.2) one has to get by car as soon as possible to point B located in the field at a distance l from the highway. It is known that the car moves in the field η times slower than on the highway. At what distance from point Done must turn off the highway?

Solution:
From point A located on a highway (Fig. 1.2) one has to get by car as soon as po

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