Question

ig |adj Al = 64 then |Al is:​

Answer 1

Answer:

There is a formula in matrix , that is given by

|adjA| =|A|^(n-1)

By knowing the order of the matrix you can use the above identity…

Thus you will get to know the det. A

Suppose if the order of the matrix is 3 then using the identity we will get

|adjA| =64 = |A|^(3–1)

64 = |A|^2

√64 = |A|

|A| = 8