Roboguru

Perhatikan gambar segi enam beraturan berikut. Ilustrator: Zain Mustaghfir   Jika  sama dengan...

Pertanyaan

Perhatikan gambar segi enam beraturan berikut.

Ilustrator: Zain Mustaghfir  

Jika begin mathsize 14px style AB with rightwards arrow on top equals u with rightwards arrow on top space dan space AF with rightwards arrow on top equals v with rightwards arrow on top comma space vektor space DF with rightwards arrow on top space end style sama dengan...undefined 

  1. begin mathsize 14px style u with rightwards arrow on top plus v with rightwards arrow on top end style 

  2. begin mathsize 14px style u with rightwards arrow on top minus v with rightwards arrow on top end style 

  3. begin mathsize 14px style 2 u with rightwards arrow on top minus v with rightwards arrow on top end style 

  4. begin mathsize 14px style negative 2 u with rightwards arrow on top plus v with rightwards arrow on top end style 

  5. begin mathsize 14px style negative 2 u with rightwards arrow on top minus v with rightwards arrow on top end style 

Pembahasan Soal:

begin mathsize 14px style DF with rightwards arrow on top equals DE with rightwards arrow on top plus EF with rightwards arrow on top DF with rightwards arrow on top equals DE with rightwards arrow on top plus open parentheses EO with rightwards arrow on top plus OF with rightwards arrow on top close parentheses DF with rightwards arrow on top equals negative u with rightwards arrow on top plus open parentheses negative v with rightwards arrow on top plus open parentheses negative u with rightwards arrow on top close parentheses close parentheses DF with rightwards arrow on top equals negative 2 u with rightwards arrow on top plus negative v with rightwards arrow on top DF with rightwards arrow on top equals negative 2 u with rightwards arrow on top minus v with rightwards arrow on top end style      

Jadi, jawaban yang tepat adalah E. undefined 

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 19 Mei 2021

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