Let A be a square matrix of order n, then which of the following are TRUE? (A) |adj A| = |A|^n-1 (B) |A. adj A| = |A|^n (C) A. (adj A) = |A| (D) |KA|…
CUET UG 2025 — Mathematics Algebra
Let A be a square matrix of order n, then which of the following are TRUE?
(A) ∣adjA∣=∣A∣n−1
(B) ∣A.adjA∣=∣A∣n
(C) A.(adjA)=∣A∣
(D) ∣KA∣=K∣A∣
(E) ∣A−1∣=∣A∣1,∣A∣=0
Choose the correct answer from the options given below:
Held on 22 May 2025 · Verified 13 Jul 2026.
Options
- A
(A), (B) and (E) only
- B
(A), (B), (C) and (E) only
- C
(B), (C) and (D) only
- D
(C), (D) and (E) only
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