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adalah jajargenjang dengan , titik  dan  masing-ma...

begin mathsize 14px style A B C D end style adalah jajargenjang dengan begin mathsize 14px style stack A B with rightwards arrow on top equals u with rightwards arrow on top comma space stack A D with rightwards arrow on top equals v with rightwards arrow on top end style, titik begin mathsize 14px style E end style dan begin mathsize 14px style F end style masing-masing titik tengah begin mathsize 14px style stack D C with rightwards arrow on top end style dan begin mathsize 14px style stack B C with rightwards arrow on top end style. Nyatakan vektor-vektor berikut dalam begin mathsize 14px style u with rightwards arrow on top end style dan begin mathsize 14px style v with rightwards arrow on top end style.

c.  begin mathsize 14px style stack A F with rightwards arrow on top end style  

Jawaban:

IIlustrasi soal di atas adalah sebagai berikut:



Vektor begin mathsize 14px style stack A F with rightwards arrow on top end style didapatkan:

begin mathsize 14px style stack A F with rightwards arrow on top equals stack A B with rightwards arrow on top plus stack B F with rightwards arrow on top stack A F with rightwards arrow on top equals u with rightwards arrow on top plus 1 half v with rightwards arrow on top end style 

Dengan demikian, Vektor begin mathsize 14px style stack A F with rightwards arrow on top end style dalam begin mathsize 14px style u with rightwards arrow on top end style dan begin mathsize 14px style v with rightwards arrow on top end style adalah begin mathsize 14px style u with rightwards arrow on top plus 1 half v with rightwards arrow on top end style.

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