Consider the triangle with vertices P(0, -4, -3), Q(1, -1, -5), and R(5, -3, -6).
Determine the following vectors.
\overrightarrow{QP} =
\overrightarrow{QR} =
Find \overrightarrow{QP} \cdot \overrightarrow{QR}.
\overrightarrow{QP} \cdot \overrightarrow{QR} =