For a square matrix of order n, ∣adj(A)∣=∣A∣n−1. Here n=3 and ∣A∣=2, so ∣adj(A)∣=23−1=22=4.
CUET UG 2022 — Mathematics Algebra
If A is a square matrix of order 3 and ∣A∣ is 2, then value of ∣adj(A)∣ is :
Held on 7 Aug 2022 · Verified 13 Jul 2026.
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