Pertanyaan

Doketahui a = ( 3 4 ​ ) dan b = ( 2 − 1 ​ ) . Maka ∣ ∣ ​ 2 1 ​ a − 2 1 ​ b ∣ ∣ ​ = .... 2 1 ​

Doketahui  dan . Maka 

N. Puspita

Master Teacher

Jawaban terverifikasi

Jawaban

.

 table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell open vertical bar 1 half a with rightwards arrow on top minus 1 half b with rightwards arrow on top close vertical bar end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank equals blank end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 1 half end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell square root of 26 end cell end table.

Pembahasan

Pembahasan

Jadi, .

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell open vertical bar 1 half a with rightwards arrow on top minus 1 half b with rightwards arrow on top close vertical bar end cell equals cell open vertical bar 1 half open parentheses table row 3 row 4 end table close parentheses minus 1 half open parentheses table row 2 row cell negative 1 end cell end table close parentheses close vertical bar end cell row blank equals cell open vertical bar open parentheses table row cell 3 over 2 end cell row 2 end table close parentheses minus open parentheses table row 1 row cell negative 1 half end cell end table close parentheses close vertical bar end cell row blank equals cell open vertical bar open parentheses table row cell 1 half end cell row cell 5 over 2 end cell end table close parentheses close vertical bar end cell row blank equals cell square root of open parentheses 1 half close parentheses squared plus open parentheses 5 over 2 close parentheses squared end root end cell row blank equals cell square root of 1 fourth plus 25 over 4 end root end cell row blank equals cell square root of 26 over 4 end root end cell row blank equals cell 1 half square root of 26 end cell row blank blank blank end table end style

Jadi, table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell open vertical bar 1 half a with rightwards arrow on top minus 1 half b with rightwards arrow on top close vertical bar end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank equals blank end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell 1 half end cell end table table attributes columnalign right center left columnspacing 0px end attributes row blank blank cell square root of 26 end cell end table.

28

Juptima Doro

Makasih ❤️

Eka Puput

Jawaban tidak sesuai

Iklan

Pertanyaan serupa

Diketahui titik-titik: A ( 5 , 2 ) , B ( 4 , 6 ) dan C ( 3 , 2 ) . Jika v = A B + A C maka panjang vektor v = ...

2rb+

4.8

Jawaban terverifikasi

Iklan

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

Fitur Roboguru

Topik Roboguru

Hubungi Kami

Ruangguru WhatsApp

081578200000

Email info@ruangguru.com

info@ruangguru.com

Contact 02140008000

02140008000

Ikuti Kami

©2022 Ruangguru. All Rights Reserved PT. Ruang Raya Indonesia