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Matrices A and B will be inverse of each other only if: (A) AB = BA (B) AB = BA = 0 (C) AB = 0, BA = I (D) AB = BA = I
Matrices A and B will be inverse of each other only if: (A) AB = BA (B) AB = BA = 0 (C) AB = 0, BA = I (D) AB = BA = I
CBSE | Class 12 | Exercise 3.4 | Maths | Matrices | NCERT
Matrices A and B will be inverse of each other only if: (A) AB = BA (B) AB = BA = 0 (C) AB = 0, BA = I (D) AB = BA = I

By definition of inverse of square matrix,

Option (A) is correct.

i

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