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an aeroplane is flying in a triangular course of order. the length of each side of the triangle is " a " km and the wind is blowing along its one side with velocity u km/hr . prove that the areoplane will take a*sq.rt of 3(sq.rt of 3 +1)/2u hour to complete the full course of order. the modulus of velocity of the aeroplane relative to wind is root 3 times the modulus of the

velocity of the wind