Question
How do I find the unit tangent vector with what I have x =2cos(t) , y=2sin(t), z =2t
The formula is T(t)=r'(t)/lr'(t)l. Show steps so I know.
The formula is T(t)=r'(t)/lr'(t)l. Show steps so I know.
Answers
oobleck
r = <2cost,2sint,2t>
r' = <-2sint,2cost,2>
|r'| = √(4sin^2t + 4cos^2t + 4) = √8
r' = <-2sint,2cost,2>
|r'| = √(4sin^2t + 4cos^2t + 4) = √8
Anonymous
ThankYou