Find the radius of curvature at points on curve r(t) = sin ti - tj + cos tk for t > or = to 0.?

Question

could you please outline the steps involved in gettting the answer.

I know the answer I just need to understand all of the steps in getting the answer.

thanks

Answer 1

compute 1st | r ' x r ' ' | / | r ' |^3, the curvature of the curve, the radius of curvature is the reciprocal.

this cleans up nicely...{2}