First slide

Introduction to Determinants

Question

$|\begin{matrix} 0 & p & - 2 \\ - p & 0 & r \\ 2 & - r & 0 \end{matrix}| =$

Moderate

A

$p q r$
B

$p^{2} q^{2} r^{2}$
C

0
D

$- p q r$

Solution

Since, ginen matrix is a skew symmctrix matrix
$\Rightarrow |\begin{matrix} 0 & p & - 2 \\ - p & 0 & r \\ 2 & - r & 0 \end{matrix}| = 0$

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