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Statement of a problem № 3091

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A and B are points on opposite banks of a river of breadth a and AB is at right angles to the flow of the river (Fig. 1.4). A boat leaves B and is rowed with constant velocity with the bow always directed toward A. If the velocity of the river is equal to this velocity, find the path of the boat (Fig. 1.5).

Solution:
A and B are points on opposite banks of a river of breadth a and AB is at right

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