Parametric curves and tangent lines
a. Eliminate the parameter to obtain an equation in x and y.
b. Find the slope of the curve at the given value of t.
c. Make a sketch of the curve showing the positive orientation of the curve and the tangent line at the point corresponding to the given value of t.
8. x = 4 sin 2t, y = 3 cos 2t, for 0 ≤ t ≤ π; t = π/6
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