Question: so for part A I got r'(t) = Not sure if I did part B correct: T(t) = / sqrt (cos2t+9e^-2t/(t-1)^4) need help for c

so for part A I got r'(t) = Not sure if

so for part A I got r'(t) =

Not sure if I did part B correct: T(t) = / sqrt (cos2t+9e^-2t/(t-1)^4)

need help for c and d

1. For the function r(t)=cos(t),3et,t11 a) Find the tangent vector (also known as velocity vector) b) Find the unit tangent vector (notation: T(t) ) c) Evaluate T(t) at the point when t=0 d) Evaluate r(0) and identify the point on the curve when t=0

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