- #1
withthemotive
- 21
- 0
Homework Statement
r(t) = 〈sin(t) − t cos(t), cos(t) +t sin(t), 5 t2 + 7 〉
Find the unit tangent. T(t)=
The Attempt at a Solution
r'(t) = <cos(t) + tsin(t), -sin(t) + tcos(t), 10t>
T(t) = r'(t)/ |r'(t)|
|r(t)| = sqrt( 1 + 101t^2)
And so on.
Supposably according to the homework I'm wrong, completely wrong.