This is the only method I know of for finding an inverse matrix.
To find the inverse of a matrix A:
1) Find the determinant of A, |A|.
2) Find the adjoint of A, which is the transpose of the matrix of cofactors of A.
3) The inverse of A is given by:
A<sup>-1</sup> = (1/|A|) * (adjoint of A)
(If |A| = 0, then there is no inverse matrix.)
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