Question: 1. Use the formula of the adjoint in order to compute the inverse of the matrix: 1-1 1 2 2 3 1 1 1

1. Use the formula of the adjoint in order to compute the

1. Use the formula of the adjoint in order to compute the inverse of the matrix: 1-1 1 2 2 3 1 1 1 2. Use Cramer's rule in order to solve the system: 3. Consider the matrix: 2x + y + 2z x+y+z 4x + y - 4z = 2 0 2 10-1 1 2 1 1 -1 1 0 1 Determine its rank, its nullspace and its nullity.

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