1. The problem statement, all variables and given/known data The position vector of a particle is given in the terms of t, by, s = (e-t+3*cos(2t)i+2tj+(e-t+3*sin(2t)k) Find the limiting value of speed when t approaches positive infinity. The answer says "s = ..." 3. The attempt at a solution I have evaluated the limits of all the components of this vector function individually: e-t = 0 3*cos(2t) = -3 to 3 2t = positive infinity 3*sin(2t) = -3 to 3. I know that the magnitude of the velocity vector is equal to the speed of the particle, so I'm not sure if i should have done the limits on the velocity vector that i found by differentiating the position vector? but the answer is in the form of "s = ..." Any help would be appreciated, Thanks!