If A is a square matrix of order 5 and 9A^{-1}=4A^T then |adj (adj | Filo
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Class 12

Math

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If A is a square matrix of order 5 and then |adj (adj (adj A))I (where and adj(A) denotes the inverse, transpose and adjoint of matrix A respectively) contains:

  1. 56 digits
  2. 60 digits
  3. 58 digits
  4. 53 digits
Correct Answer: Option(a)
Solution:
|adj adj adj A|
No. of digits in |adj adj adj A| . ([.] denotes greatest integer function).
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