R Romsek Senior Member Joined Nov 16, 2013 Messages 1,361 Apr 14, 2020 #2 a) The volume is equal to the triple product of the vectors defining the parallelepiped b) can you find the parametric equation for the tangent line at that point? [MATH]r = \left . (1,0,1)+t \left(\dot{\Gamma}(t) \right|_{t=0}\right)[/MATH] From there obtaining the symmetric equations is trivial.
a) The volume is equal to the triple product of the vectors defining the parallelepiped b) can you find the parametric equation for the tangent line at that point? [MATH]r = \left . (1,0,1)+t \left(\dot{\Gamma}(t) \right|_{t=0}\right)[/MATH] From there obtaining the symmetric equations is trivial.