Given that |abcdefghi|=−24, find |adgbehcfi|
Directly use the following property of determinants:
Suppose A is a square matrix. Then detA=det(A⊤), where A⊤ is the transpose of A.
I tried 24 but thats not it
Let A=(abcdefghi), you are given det(A) = -24, and you are to find det(A⊤).
Combine this with the formula I stated. Is this clearer to you now?
