Practicing Success
If A is a matrix of order 4, and |A| = -3, then what is the value of |adj A|? |
27 -27 -9 9 |
-27 |
|adj A| = \( { |A| }^{ n-1 } \), where n is the order of the matrix |adj A| = \( { |A| }^{ 4-1 } \) |adj A| = \( { (-3) }^{ 4-1 } \) |adj A| = -27 |