Practicing Success
If A is a matrix of order 3, and |A| = -5, then what is the value of |adj A| ? |
25 -25 15 -15 |
25 |
|adj A| = \( { |A| }^{ n-1 } \), where n is the order of the matrix |adj A| = \( { |A| }^{ 3-1 } \) |adj A| = \( { (-5) }^{ n-1 } \) |adj A| = 25 |