9. For each pair of vectors, find all values of x ER such that they are...

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9. For each pair of vectors, find all values of x ER such that they are orthogonal. -> i. a = (-1, 2), (2, a2) b -> ji, a = (1, 1, 1), b (г, 2, — 2) iii. a (5, x, 0, 1), b (0, - 1, 3, – 1) 9. For each pair of vectors, find all values of x ER such that they are orthogonal. -> i. a = (-1, 2), (2, a2) b -> ji, a = (1, 1, 1), b (г, 2, — 2) iii. a (5, x, 0, 1), b (0, - 1, 3, – 1)