Question: Question 1 (1 point) If a = (3, 2, 9) and b = (-4, 7, 1), find a . b. Oa) a . b =-9

Question 1 (1 point) If a = (3, 2, 9) and b = (-4, 7, 1), find a . b. Oa) a . b =-9 Ob) a . b = 11 Oca . b = 20 Od) a . b = 12Question 4 (1 point) What is (0, 0, 1) x (0, 1, 0)? O a) (-1, 0, 0,) O b) (1, 0, 0) O c (0, 0, 1) O d) (0, -1, 0)

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