Vektor-vektor u = 3i +5j -6k dan v = 9i - mj +2k saling tegak lurus. Maka harga m =
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Vektor-vektor u = 3i +5j -6k dan v = 9i - mj +2k saling tegak lurus. Maka harga m =
1 Jawaban
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1. Jawaban CAPTAINROCKY1
u . v = 0
(3,5,-6) . (9,m,2) =0
(27+5m-12) =0
15+5m =0
5m=-15
m =-15/5
m=-3