Find the unit tangent vector to the curve at the specied value of the parameter: r(t) = t3i + 7t2j, 1': 2 Find the unit tangent vector to the curve at the specified value of the parameter. r(t) = 7 cos(t)i + 7 sin(t)j, t = 1 4Find the unit tangent vector t). r(t) - Ital + u +% In 5125.5.201'3} ITS) - Find a set of parametric equations For the iins tangent to the space curve at point F. (Enter your answers as a :ornma-seuarated list. Use Hor the variable of paramaterization.) Find the unit tangent vector T(t). r(t) = (5 cost, 5 sin t, 4), P( , 4) T Find a set of parametric equations for the line tangent to the space curve at point P. (Enter your answers as a comma-separated list. Use t for the variable of parameterization.)