b)
A^(-1) = 1/a·[a + 24, -9, -3; 2·(8 - a), a - 6, -2; -8, 3, 1]
c)
Wenn a = 6 also
A^(-1) = 1/6·[6 + 24, -9, -3; 2·(8 - 6), 6 - 6, -2; -8, 3, 1] = 1/6·[30, -9, -3; 4, 0, -2; -8, 3, 1]
X = A^(-1)·[3; 2; 0] = [12; 2; -3]
b)
A^(-1) = 1/a·[a + 24, -9, -3; 2·(8 - a), a - 6, -2; -8, 3, 1]
c)
Wenn a = 6 also
A^(-1) = 1/6·[6 + 24, -9, -3; 2·(8 - 6), 6 - 6, -2; -8, 3, 1] = 1/6·[30, -9, -3; 4, 0, -2; -8, 3, 1]
X = A^(-1)·[3; 2; 0] = [12; 2; -3]