College Algebra Matrices
Inverses of Matrices Drills

| Problem 1
| Given: two matrices A and B. Is matrix B inverse to matrix A?
| Problem 2
| Find for which x matrix A is singular
| Problem 3
| Given: the matrix A. Evaluate element cij of the inverse matrix
| Problem 4
| Given: all minors of determinant |A| and elements of a row or a column. Evaluate element cij of the inverse matrix
| Problem 5
| Given: two matrices A and B. Solve the equation A=XB
| Problem 6
| Given: two matrices A and B. Solve the equation XA=B

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