The value of ∣∣∣∣0p−qp−rq−p0q−rr−pr−q0∣∣∣∣ is equal to

The value of ∣∣∣∣0p−qp−rq−p0q−rr−pr−q0∣∣∣∣

1.	The value of ∣∣∣∣0p−qp−rq−p0q−rr−pr−q0∣∣∣∣ is equal to
Answer» The value of $∣ ∣∣ ∣ \begin{matrix} 0 & p - q & p - r q - p & 0 & q - r r - p & r - q & 0 \end{matrix} ∣ ∣∣ ∣$ is equal to