Question: answer questions only Question 7 (1 point) Find all (a, b, c, d) in R4 such that the given set is orthogonal. {(1, 2, 1,

answer questions only

answer questions only Question 7 (1 point) \\Find
Question 7 (1 point) \\Find all (a, b, c, d) in R4 such that the given set is orthogonal. {(1, 2, 1, 0), (1, -1, 1, 6), (2, -1, O, 1), (a, b, C, d)} /\\ 1 4 tin R 9 2 J O 1 tin R 1 f K) true for all values 0 no solution Question 8 (1 point) If A an Bare n X Tl. matrices, then det AT 2 det A. 0 True .0 False Question 9 (1 point) Find all values of a such that the following are independent in R3. [(1, -1, 0), (a, 1, O), (0, 2, 3)} 0a 75 1 00. 7E 1 m IQ True for all values of a. C) No solution

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