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? [ 2011 4. What is the inverse of the matrix A= 1 0 1 0 1-1 0 3] [100] A A-1=010 © [001] **=638] To 0 11 A-1= 1 2 -1 -2 1-1 1 1 The matrix A-exists, but is neither of the above. ® [ O-31 A-1 = 0 1 0 LO © The matrix A is not invertible.