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Minimum drag occurs at the mimimum value of
the following equation
D
=
СD+aС²
CL
Where D is the drag, C₁, the coefficient of lift
and CD, k are constants
Define the value of C₁ for which the minimum
value of drag occurs. Then calculate this value
for CD = 0.8 and a = 6.19
Give your answer to 3 decimal places.

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