`A` is a skew-symmetric of order 3, write the value of `|A|` .

Explanation

Since A is a skew-symmetric matrix,

Therefore `A^T = -A`

Taking determinant both sides

`|A^T| = |-A|`

Using `|A^T| = |A|`

and `|λA| = λ^m|A|`

where m is the order of `A |A| = (-1)^3|A| = -|A| or 2|A| = 0`
Hence, `|A| = 0`