Q: (4, 3, 2)
R: (-6, 0, 3)
P: (5, -1, 1)
S: (-5, -4, 3)
pq = Vector(P, Q)
ps = Vector(P, S)
a: (pq * ps)
rs = Vector(R, S)
rq = Vector(R, Q)
b: (rs * rq)
c: (rs * ps)
sq = Vector(S, Q)
Text1: "\overrightarrow{ PQ } = \left(\begin{array}{c} " + (LaTeX[x(pq)]) + " \\ " + (LaTeX[y(pq)]) + "\\ " + (LaTeX[z(pq)]) + " \end{array}\right)"
v1, p, q, r, s = Polygon(P, Q, R, S)