I have to find the curvature of the curve with the equation (4sint)i+(4sint)j+(4cost)k. I use the magnitude of r'xr'' over the magnitude of r'^3. Nothing cancels out for me. Can anybody help??
I have to find the curvature of the curve with the equation (4sint)i+(4sint)j+(4cost)k. I use the magnitude of r'xr'' over the magnitude of r'^3. Nothing cancels out for me. Can anybody help??
If "Nothing cancels out", then how can anyone help?
What did you get for
I get
Last edited by Plato; March 23rd 2011 at 02:17 PM.