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Pada jajargenjang PQRS dengan titik tengah O diketahui PQ ​ = u dan PS = v . Nyatakan vektor dan hasil operasi vektor berikut dalam u dan v . c. QR ​ + PR

Pada jajargenjang  dengan titik tengah  diketahui  dan . Nyatakan vektor dan hasil operasi vektor berikut dalam  dan .

c.   

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E. Nur

Master Teacher

Mahasiswa/Alumni Institut Teknologi Sepuluh Nopember

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Jawaban

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 begin mathsize 14px style QR with rightwards arrow on top plus PR with rightwards arrow on top equals u with rightwards arrow on top plus 2 v with rightwards arrow on top end style

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Pembahasan

Jadi, .

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell QR with rightwards arrow on top plus PR with rightwards arrow on top end cell equals cell QR with rightwards arrow on top plus PQ with rightwards arrow on top plus QR with rightwards arrow on top end cell row blank equals cell 2 QR with rightwards arrow on top plus PQ with rightwards arrow on top end cell row blank equals cell 2 PS with rightwards arrow on top plus PQ with rightwards arrow on top end cell row blank equals cell 2 v with rightwards arrow on top plus u with rightwards arrow on top end cell row blank equals cell u with rightwards arrow on top plus 2 v with rightwards arrow on top end cell end table end style

Jadi, begin mathsize 14px style QR with rightwards arrow on top plus PR with rightwards arrow on top equals u with rightwards arrow on top plus 2 v with rightwards arrow on top end style

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