Iklan

Pertanyaan

Jika a = 3 i − 5 k dan b = − 2 i + j ​ − k , maka proyeksi skalar 2 a pada b =....

Jika  dan , maka proyeksi skalar  pada =....

  1. negative 1 over 6 square root of 6

  2. negative 1 third square root of 6

  3. 1 third square root of 6

  4. 1 over 6 square root of 6

  5. square root of 6

Ikuti Tryout SNBT & Menangkan E-Wallet 100rb

Habis dalam

01

:

02

:

01

:

35

Klaim

Iklan

A. Acfreelance

Master Teacher

Jawaban terverifikasi

Pembahasan

2 a with rightwards arrow on top equals 2 left parenthesis 3 i with rightwards arrow on top minus 5 k with rightwards arrow on top right parenthesis equals 6 i with rightwards arrow on top minus 10 k with rightwards arrow on top  c with rightwards arrow on top equals fraction numerator 2 stack a. with rightwards arrow on top b with rightwards arrow on top over denominator open vertical bar b with rightwards arrow on top close vertical bar end fraction space space space equals fraction numerator left parenthesis 6 i with rightwards arrow on top minus 10 k with rightwards arrow on top right parenthesis left parenthesis negative 2 i with rightwards arrow on top plus j with rightwards arrow on top minus k with rightwards arrow on top right parenthesis over denominator square root of left parenthesis negative 2 right parenthesis squared plus 1 squared plus left parenthesis negative 1 right parenthesis squared end root end fraction space space space equals fraction numerator negative 12 plus 0 plus 10 over denominator square root of 6 end fraction space space space equals negative fraction numerator 2 over denominator square root of 6 end fraction cross times fraction numerator square root of 6 over denominator square root of 6 end fraction space space space equals negative 2 over 6 square root of 6 space space space equals negative 1 third square root of 6

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

1

Iklan

Pertanyaan serupa

Misalkan dan sehingga panjang vektor proyeksi O A terhadap OB lebih dari 5 ​ 4 ​ maka nilai t yang mungkin adalah....

1

4.6

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

©2025 Ruangguru. All Rights Reserved PT. Ruang Raya Indonesia