I need to calculate the Frenet apparatus for the space curve defined by(adsbygoogle = window.adsbygoogle || []).push({});

[tex] \overrightarrow{r} (t) = \langle t - cos (t), sin(t), t \rangle [/tex]

so for T I did

[tex]\overrightarrow{r} \prime (t) = \langle 1 + sin(t), cos(t), 1 \rangle [/tex]

then I got |r'(t)| = [tex]\sqrt{2sin(t) + 3 [/tex]

which i'm pretty sure is either wrong or not simplified. Anyone care to look at my problem?

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# Homework Help: Frenet apparatus

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