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If A is a singular matrix, then adj A is...

If `A` is a singular matrix, then adj `A` is

A

singular

B

non singular

C

symmetric

D

not defined

Text Solution

Verified by Experts

We know that `AadjA=∣A∣I`
`∣AadjA∣=∣A∣^n `[ if A is of order n×n]
`∣A∣∣adjA∣=∣A∣^n`
`∣adjA∣=∣A∣^(n−1)`
...
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