Posted by Marcia on Tuesday, February 26, 2013 at 2:22am.
A curtate cycloid is defined by the equations x = 2t  sin t and y = t  cos t. If I walk along the cycloid, how far will I walk in 10 seconds?

AP Calculus BC  Steve, Tuesday, February 26, 2013 at 4:23am
ds^2 = dx^2+dy^2
= (2cos t)^2 + (1+sin t)^2
= 4  4cost + cos^2 t + 1 + 2sint + sin^2 t
= 6  4cost + 2sint
The problem is, that this results in an elliptic integral, which is not usual in lowlevel calculus classes
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