Determine whether the given linear operator/matrix is diagonalizable. (a) T: R³ → R³ with T(1, 1, 1) = (2, 2, 2), T(0, 1, 1) = (0, −3,−3) and T(1, 2, 3) = (-1, -2, -3) -2 (b) C = =[1² 3

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