What is the adjoint of a matrix, and how is it used to find the inverse?
Answer (1)
The adjoint of a matrix is the transpose of its cofactor matrix, and it's used to find the inverse of a matrix by dividing the adjoint by the determinant of the original matrix. The inverse matrix is also found using the following equation:
A−1=adj(A)/det(A),
where adj(A) refers to the adjoint of a matrix A,det(A) refers to the determinant of a matrix A.
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