Question

If A is a square matrix of order 2 that gives |adjA|=36 then find |A|.

Answer 1

ANSWER

Using the formula =

∣adj(A)∣=∣A∣

n−1

where,n= order of square matrix A

∴ Here

∣adj(A)∣=∣A∣

3−1

⇒36=∣A∣

2

⇒6=∣A∣.

Answer 2

Answer:

36

Step-by-step explanation:

as order of matrix n=2

|adj a|=|a|^n-1

therefore |adj a|=|a|=36