For a square matrix A, which of the following properties hold? 1. (A^ -1 )^ -1 =A 2. (A^ -1 )= 1 A 3. ( A)^ -1 = A^ -1 where is a scalar Select the correct answer using the code given below :

NDA 2018 Mathematics question

For a square matrix A, which of the following properties hold? 1. 2. 3. where is a scalar Select the correct answer using the code given below :

Answer: (A)

1: the inverse of is ; correct. 2: ; correct. 3:

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Question ID VK-028943