If A is a square matrix of order 3 such that A( adj A)= bmatrix 64&0&0 0&64&0 0&0&64 bmatrix then what is |A| equal to?

NDA 2026 Mathematics question

If is a square matrix of order 3 such that then what is equal to?

Answer: (D)

For any square matrix, . Here , so and .

Question ID VK-030388