(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Find the unit tangent, normal and binormal vectors T,N,B , and the curvature of the curve

x=−4t y=−t^{2}z=−2t^{3}at t=1.

2. Relevant equations

3. The attempt at a solution

I found T=(-4/sqrt(56),-2/sqrt(56),-6/sqrt(56)) which is correct. But I keep getting N wrong? PLease help me, thank you!

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# Homework Help: Curvature question

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