boofpack4203 boofpack4203
  • 08-11-2018
  • Mathematics
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Pada segiempat PQRS,titik A dan B masing-masing titik tengah PR dan QS.Jika vektor AB = u maka PQ+PS+RQ+RS =

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fafhaa
fafhaa fafhaa
  • 08-11-2018
4u
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