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To explain the solution of your typical problems is the main idea of creating this site.
Please keep in mind that the solution may differ from the one made at your educational institution.

Inverse Matrix
The inverse matrix can be calculated only for square matrices, but not every square matrix has an inverse matrix.
If the found matrix A^{-1} is inverse for the given matrix A, then A^{-1} * A = A * A^{-1} = E.
This calculator uses the algebraic additions to calculate the inverse matrix.
The solution is accompanied by a large number of illustrations. Example ¹1. Finding the inverse of a 2x2 matrix Example ¹2. Finding the inverse of a 3x3 matrix