I have been long thinking on how one would set up an integral to find the area under a helix (the area between the helix and the line it is encircling). I couldn't get a good expression for dA, because the infinitessimal cuts were all bent, and I wasn't sure how I could accurately approximate them with flat sections.(adsbygoogle = window.adsbygoogle || []).push({});

I was planning on finding a general form for the area under a graph as it was being rotated around an axis (in a helix-kind-of-way), but I was stumped at the most basic case >.<

Any help appreciated.

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# Area under a helix

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