If A is a non singular matrix of order 3 and |A| = 3 then find |2A| ?

1.	If A is a non singular matrix of order 3 and \|A\| = 3 then find \|2A\| ?
Answer» ANSWER: ADJ(B)∣=∣B∣ n−1 if B=A 3 then ∣ ∣ ∣ ∣ adj(A) 3 ∣ ∣ ∣ ∣ = ∣ ∣ ∣ A 3 ∣ ∣ ∣ 2 =∣A∣ 6 Explanation: Please mark it brainliest

Answer»

ADJ(B)∣=∣B∣

n−1

if B=A

then

∣

adj(A)

∣

=∣A∣

Explanation:

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