Can someone please help me with this question????

1. Let L1:r1 = t(1,,3) and L2 :r2 = (1,2,2) +t(1,[},0) be two lines. (a) Find the plane P containing L1 parallel to L2. (b) Find the distance from any point on L2 to the plane 13. Why does this not depend on the point in L2? (c) Find 11, a normal vector of 'P, such that n + r2 lies in L1. How is |n| related to your answer in part (b)? (d) Let L; : n + r2 be the line obtained by translating L2. Find the intersection point P of L3 and L1. (e) Explain why (I? and (E; n are the points on L1 and L2 respectively which are closest to each other