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Find the slope of the tangent line to the parametric curve `{(x=2 cos(t)),(y=4 sin(t)):}` at the point where `t=pi/6`.
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Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Enter DNE for Does Not Exist, oo for Infinity
-3.4641016151378