What is meant by cofactor expansion?
What is meant by cofactor expansion? One way of computing the determinant of an n×n matrix A is to use the following formula called the cofactor formula. Pick any i∈{1,…,n}. Then det(A)=(−1)i+1Ai,1det(A(i∣1))+(−1)i+2Ai,2det(A(i∣2))+⋯+(−1)i+nAi,ndet(A(i∣n)). How do you calculate cofactor expansion? How to compute the cofactor expansion 3×3? Choose a row/column of your Read more…