Hello everyone, i just want to check to see if this derivative of the vector is right, I can't access maple and i don't have a ti-89 so i can't check! here it is: http://show.imagehosting.us/show/798939/0/nouser_798/T0_-1_798939.jpg
Well, the thing is that it can go above 0... but how far? Start looking at the equations and ask yourself where each one has a valid result. For example, the i component can be t=<2