Roboguru

Diketahui  dan vektor  dan . Jika , maka tentukanl...

Diketahui size 14px a with size 14px rightwards harpoon with barb upwards on top size 14px equals size 14px 3 size 14px i with size 14px rightwards harpoon with barb upwards on top size 14px minus size 14px 2 size 14px j with size 14px rightwards harpoon with barb upwards on top dan vektor b with size 14px rightwards harpoon with barb upwards on top size 14px equals size 14px minus size 14px i with size 14px rightwards harpoon with barb upwards on top size 14px plus size 14px 4 size 14px j with size 14px rightwards harpoon with barb upwards on top dan z with size 14px rightwards harpoon with barb upwards on top size 14px equals size 14px 7 size 14px i with size 14px rightwards harpoon with barb upwards on top size 14px minus size 14px 8 size 14px j with size 14px rightwards harpoon with barb upwards on top. Jika z with size 14px rightwards harpoon with barb upwards on top size 14px equals size 14px m a with size 14px rightwards harpoon with barb upwards on top size 14px plus size 14px n b with size 14px rightwards harpoon with barb upwards on top, maka tentukanlah size 14px m size 14px plus size 14px n.

  1. horizontal ellipsis 

  2. horizontal ellipsis 

Jawaban:

Perhatikan 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell z with rightwards harpoon with barb upwards on top end cell equals cell m a with rightwards harpoon with barb upwards on top plus n b with rightwards harpoon with barb upwards on top end cell row cell open parentheses table row 7 row cell negative 8 end cell end table close parentheses end cell equals cell m open parentheses table row 3 row cell negative 2 end cell end table close parentheses plus n open parentheses table row cell negative 1 end cell row 4 end table close parentheses end cell row cell negative 8 end cell equals cell negative 2 m plus 4 n end cell row cell negative 8 end cell equals cell negative 2 m plus 4 open parentheses 3 m minus 7 close parentheses end cell row cell negative 8 end cell equals cell negative 2 m plus 12 m minus 28 end cell row cell negative 4 end cell equals cell negative m plus 6 m minus 14 end cell row 10 equals cell 5 m end cell row 2 equals m row blank blank blank row n equals cell 3 m minus 7 end cell row n equals cell 6 minus 7 equals negative 1 end cell row blank blank blank row cell m plus n end cell equals cell 2 plus open parentheses negative 1 close parentheses equals 1 end cell end table end style

 

0

Ruangguru

RUANGGURU HQ

Jl. Dr. Saharjo No.161, Manggarai Selatan, Tebet, Kota Jakarta Selatan, Daerah Khusus Ibukota Jakarta 12860

Coba GRATIS Aplikasi Ruangguru

Download di Google Play

Download di Appstore

Produk Ruangguru

Produk Lainnya

  • Brain Academy Online
  • English AcademyBaru
  • Skill Academy
  • Ruangkerja

Bantuan & Panduan

Hubungi Kami

Ruangguru WhatsApp

081578200000

[email protected]

02140008000

Ikuti Kami

©2021 Ruangguru. All Rights Reserved