Question 1 (1 point) If vector a = (3, 2, 9) and 5 = (-4, 7, 2), find a b. b . a) a b=-9 Ob) a b=19 Oca b=20 d) a b=12
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Question 1 (1 point) If vector a = (3, 2, 9) and 5 = (-4, 7, 2), find a b. b . a) a b=-9 Ob) a b=19 Oca b=20 d) a b=12
Question 1 (1 point) If vector a = (3, 2, 9) and 5 = (-4, 7, 2), find a b. b . a) a b=-9 Ob) a b=19 Oca b=20 d) a b=12