Step 1 :The intersection of two lines occurs when their parametric equations are equal. That is, we need to find a value of t and s such that: \(6 - 2t = 13 + 5s\), \(-1 + 2t = -8 - 5s\), \(-10 + 8t = 4 + s\).
Step 2 :From the first equation, we can express s in terms of t: \(6 - 2t = 13 + 5s\), \(5s = -7 + 2t\), \(s = (-7 + 2t) / 5\).
Step 3 :Substitute s into the second equation: \(-1 + 2t = -8 - 5((-7 + 2t) / 5)\), \(-1 + 2t = -8 + 7 - 2t\), \(4t = 1\), \(t = 1 / 4\).
Step 4 :Substitute t = 1 / 4 into the third equation: \(-10 + 8(1 / 4) = 4 + s\), \(-10 + 2 = 4 + s\), \(s = -12 + 2\), \(s = -10\).
Step 5 :Substitute t = 1 / 4 and s = -10 into the parametric equations of the lines: \(r(t) = <6 - 2(1 / 4), -1 + 2(1 / 4), -10 + 8(1 / 4)> = <5, -0.5, -8>\), \(R(s) = <13 + 5(-10), -8 - 5(-10), 4 - 10> = <-37, 42, -6>\).
Step 6 :Since \(r(t) \neq R(s)\), the lines do not intersect. Therefore, the answer is \(\boxed{\text{none}}\).