0 Question 5 E 0/5 pts '0 7 3 97 (9 Details Find the unit tangent vector to the curve defined by F(t) = (3 cos(t), 3 sin(t), 4 sin2(t)> 7r att= 6 11' Use the unit tangent vector to write the parametric equations of a tangent line to the curve at t = . 6 mm = [:1 m = :1 2m = :1 Submit Question 0 Question 6 E.' 0/5 pts '0 7 3 97 G) Details Find the length of the curve m(t) 2 eat cos(t), 903) 2 eat sin(t) for 0 5 t 5 5. Submit Question 0 Question 7 E1 0/5 pts '0 7 :3 97 (9 Details Find the curvature of the curve defined by FOE) = (3 cos(t), 2sin(t)) tt 211' a = . 3 :1