I need help with A B and C

1 /1 - 100% + Name: Vector Valued Function (Spacecurve) The curve defined by r(t) = (t, tcos(t) , tsin(t) ) over 0 S t'S 4n is shown below. A. Determine the point defined when t = = 7 TT 7n B. Determine the tangent vector to the curve when t = 3 Decimal approximations are OK. 7 nt C. Find the parametric equations that define that tangent line to the curve when t = Decimal 3 approximations are OK. D. Use the graph below to plot all the results found in parts A-Cabove