Sketch the curve and find its arc length r(t) = (cos π t, sin π t, cos 4 π t), 0 ≤ t ≤ 2
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Originally Posted by Adgh Sketch the curve and find its arc length r(t) = (cos π t, sin π t, cos 4 π t), 0 ≤ t ≤ 2 It might help to note that, for all t, so the projection into the xy- plane is a circle. How does z vary? The arclength is, of course . Can you do that?
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