Answer:
a
b
Explanation:
From the question we are told that
The velocity of the river due east is
The velocity of the boat due north is
The width of the river is
Generally the velocity of the boat relative to the shore
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Generally direction of the boat relative to the shore is mathematically represented as
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Generally the distance covered by the boat in the direction of flow of the river before reaching the north shore is mathematically represented as
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