Iklan

Iklan

Pertanyaan

Diketahui a = − 2 i + 4 j , b = − 6 j , dan vektor c = − 3 i + 5 j . Tentukan hasil dari: b. c ⋅ b

Diketahui , dan vektor . Tentukan hasil dari: 

b.  

  1. ...  

  2. ...  

Iklan

L. Rante

Master Teacher

Mahasiswa/Alumni Universitas Negeri Makassar

Jawaban terverifikasi

Jawaban

.

 begin mathsize 14px style c with rightwards arrow on top times b with rightwards arrow on top equals negative 30 end style

Iklan

Pembahasan

Jadi .

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell c with rightwards arrow on top end cell equals cell negative 3 i plus 5 j end cell row blank equals cell open parentheses table row cell negative 3 end cell row 5 end table close parentheses end cell row blank blank blank row cell b with rightwards arrow on top end cell equals cell negative 6 j end cell row blank equals cell open parentheses table row 0 row cell negative 6 end cell end table close parentheses end cell row blank blank blank row cell c with rightwards arrow on top times b with rightwards arrow on top end cell equals cell open parentheses table row cell negative 3 end cell row 5 end table close parentheses times open parentheses table row 0 row cell negative 6 end cell end table close parentheses end cell row blank equals cell open parentheses negative 3 close parentheses times 0 plus 5 times open parentheses negative 6 close parentheses end cell row blank equals cell 0 minus 30 end cell row blank equals cell negative 30 end cell end table end style 

Jadi begin mathsize 14px style c with rightwards arrow on top times b with rightwards arrow on top equals negative 30 end style

Perdalam pemahamanmu bersama Master Teacher
di sesi Live Teaching, GRATIS!

271

Iklan

Iklan

Pertanyaan serupa

Jika a = 3 i + j ​ − 2 k dan b = 6 i + 2 j ​ + 3 k maka proyeksi skalar orthogonal vektor a pada b = ...

6

5.0

Jawaban terverifikasi

RUANGGURU HQ

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

Coba GRATIS Aplikasi Roboguru

Coba GRATIS Aplikasi Ruangguru

Download di Google PlayDownload di AppstoreDownload di App Gallery

Produk Ruangguru

Hubungi Kami

Ruangguru WhatsApp

+62 815-7441-0000

Email info@ruangguru.com

[email protected]

Contact 02140008000

02140008000

Ikuti Kami

©2024 Ruangguru. All Rights Reserved PT. Ruang Raya Indonesia