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If A is a matrix of order 3 and |A| = 3 , then the value of |adj A| is |
9 3 6 Cannot be determined |
9 |
We know that |adj A| = \( { |A| }^{ n-1 } \) , where n is the order of matrix A. So, |adj A| = \( { |A| }^{ 3-1 } \) = \( { |A| }^{ 2 } \) = \( { 3 }^{ 2 } \) = 9 |
