Question

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

• A. Singular
• B. Non-Singular
• C. Symmetric
• D. Not defined

Answer 1

Answer: (A)

Singular

Answer 2

If A is a singular matrix Ž It means |A| = O

Then |adj. A| = |A|^n–1

so (adj. A) is also singular matrix