When linear algebra asks what value a takes, the following vector groups are linearly related? A1 = (a, 1,1) ^ t, A2 = (1, a, - 1) ^ t, A3 = (1, - 1, a) ^ t (need the whole process, thank you

When linear algebra asks what value a takes, the following vector groups are linearly related? A1 = (a, 1,1) ^ t, A2 = (1, a, - 1) ^ t, A3 = (1, - 1, a) ^ t (need the whole process, thank you

The determinant | A3, A2, A1 | = 11 A - 1 A - 1 A - 1 R 2 + R 1, R 3 - AR 1 is 11 a 0 a + 1 A + 10 - A - 1 - A ^ 2 + 1. The second row proposes that a + 11 a 0 1 0 - A - 1 - A ^ 2 + 1R 3 + (a + 1) r 2 is 11 a 0