September 2018 1 24 Report
Diketahui titik P ( 9, 10, -3 ) dan Q ( 1, -2, 5 ). Titik R membagi PQ di dalam dengan perbandingan 1 : 3. Panjang vektor RQ adalah.......
A.√15
B.√81
C.√90
D.√121
E.√153

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