1MATH 1300 ASSIGNMENT PROBLEMS (UNIT 2)  1. Let P = (1, 3, –1), Q = (2, 1, –2) and R = (–2, 1,–3) be 3 points in R3. (a) Find the components of the vector PQand PR. (b) Find a set of parametric equations for the line through the points P and R. (c) Use the vectors PQand PRto find a normal vector to the plane through the 3 points P, Q and R. (d) Find a standard form equation of the plane through the 3 points P, Q and R.  2. Let 12: 3226and: 239xyzxyz ππbe two planes in R3.