Question: 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

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 D one must turn off the highway?

Fig. 1.2.

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