My tutor mentioned that i should use the regular value theorem for this. I kind of know how to do this for sets like $M=\{x \in \mathbb{R}^3 : g(x)= 0 \}$. However i dont know how to use it on this problem because of the paramitrization form.
2026-03-25 21:54:06.1774475646
Show that $M = \{(r \cos(\sigma), r \sin(\sigma), \sigma ): r \in (0,1), \sigma \in \mathbb{R}\}$is a submanifold of $\mathbb{R}^3$ (Helicoid)
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