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

MCQ

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

A
non−singular
✓
singular
C
symmetric
D
not defined

✓

Answer

Correct option: B.

singular

Given ∣A∣ = 0

We know ∣adjA∣ = ∣A∣ n - 1

∴ ∣adjA∣ = 0

Hence, adj A is singular

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