Roboguru

Perhatikan gambar berikut.   Pernyataan yang benar adalah ....

Pertanyaan

Perhatikan gambar berikut.

 

Pernyataan yang benar adalah ....

  1. begin mathsize 14px style u with rightwards arrow on top plus v with rightwards arrow on top plus w with rightwards arrow on top equals 0 with rightwards arrow on top end style 

  2. begin mathsize 14px style u with rightwards arrow on top plus v with rightwards arrow on top minus w with rightwards arrow on top equals 0 with rightwards arrow on top end style 

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

  4. begin mathsize 14px style u with rightwards arrow on top plus v with rightwards harpoon with barb upwards on top plus w with rightwards harpoon with barb upwards on top equals 2 v with rightwards harpoon with barb upwards on top end style 

  5. begin mathsize 14px style u with rightwards arrow on top plus v with rightwards arrow on top plus w with rightwards arrow on top equals 2 w with rightwards arrow on top end style 

Pembahasan Soal:

Pada vektor tersebut, operasi vektor yang tepat yaitu:

begin mathsize 14px style v with rightwards arrow on top plus w with rightwards arrow on top equals u with rightwards arrow on top end style 

Jika kedua ruas ditambahkan dengan vektor begin mathsize 14px style u with rightwards arrow on top end style, maka:

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

Jadi, jawaban yang tepat adalah C.

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 12 Februari 2021

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