Two particles travel along the space curves r1(t) = t, t2, t3 r2(t) = 1 + 4t, 1 + 16t, 1 + 52t . find the points at which their paths intersect. (if an answer does not exist, enter dne.) (x, y, z) = (smaller x-value) (x, y, z) = (larger x-value) find the time(s) when the particles collide. (enter your answers as a comma-separated list. if an answer does not exist, enter dne.) t =