I am doing a TNB-Frame problem and I am currently finding the tangent. The point I am trying to find it at is t=0 and my vector T(t) comes out to be in indeterminate form. So my question is how would I solve for vector T(t).

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- March 28th 2010, 03:04 PMSgraveyardVector Calculus
I am doing a TNB-Frame problem and I am currently finding the tangent. The point I am trying to find it at is t=0 and my vector T(t) comes out to be in indeterminate form. So my question is how would I solve for vector T(t).

- March 28th 2010, 03:11 PMcraig
- March 28th 2010, 03:13 PMSgraveyard
Vector T(t) = <tcos(t), tsin(t),0>/sqrt(t^2*cos^2(t)+t^2*sin^2(t))

At t=0

R(t) was originally <cos(t)+t*sin(t),sin(t)-t*cos(t),1> - March 28th 2010, 03:18 PMcraig
- March 28th 2010, 03:22 PMSgraveyard
- March 28th 2010, 03:25 PMcraig
So is it the vector that you want to differentiate?

- March 28th 2010, 03:29 PMSgraveyard
- March 28th 2010, 03:31 PMcraig
- March 28th 2010, 03:34 PMSgraveyard