Please finish the following questions thank you!

Find the vectors T, N, and B at the given point. r(t) = (9 cos(t), 9 sin(t), 9 In(cos(t))), (9, 0, 0) T = N = B =\fConsider the following vector function. r(t) = ( 8t, 1+2, +2) 2 (a) Find the unit tangent and unit normal vectors T(t) and N(t). T(t) = N(t) (b) Use this formula to find the curvature. K(t) =