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Attempt following question by selecting a choice to answer.
B
Find the equation of the tangent line to the curve with the parametric equations.
x = 2cot t, y = 2sin2 t at t = π4.
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A.  Bx + 2y  - (2 +2) = 0
B.  B2x + y - 3 = 0
C.  By - 2 = 0
D.  Bx + 2y = 0
E.  Bx + 2y - 4 = 0

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