Consider three vectors p = 2i + 3j + 4k, q = i + 4j - k and r = 2i + 3j + k. If p, q and r denote the position vector of three non-collinear points, then the equation of the plane containing these points is:
1
x + y + 5 = 0
2
x + y - 5 = 0
3
x - y + 5 = 0
4
x - y - 5 = 0