If A = `[(1, 1, -1), (1, -2, 1), (2, -1, -3)]`, then (adj A)A = _… - Vidyadip

MCQ

If A = `[(1, 1, -1), (1, -2, 1), (2, -1, -3)]`, then (adj A)A = ______

A
`[(17, 0, 0), (0, 17, 0), (0, 0, 17)]`
✓
`[(9, 0, 0), (0, 9, 0), (0, 0, 9)]`
C
`[(-7, 0, 0), (0, -7, 0), (0, 0, -7)]`
D
`[(-11, 0, 0), (0, -11, 0), (0, 0, -11)]`

✓

Answer

Correct option: B.

`[(9, 0, 0), (0, 9, 0), (0, 0, 9)]`

B

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