Roboguru
SD

Diberikan fungsi  f:R×R→R dengan . Nilai fungsi f(x, y) jika  x=−3 dan  y=7 adalah ....

Pertanyaan

Diberikan fungsi  begin mathsize 14px style f colon straight real numbers cross times straight real numbers rightwards arrow straight real numbers end style dengan size 14px f begin mathsize 14px style left parenthesis x comma y right parenthesis end style size 14px equals fraction numerator size 14px minus size 14px 2 size 14px x to the power of size 14px 2 size 14px plus size 14px 5 size 14px y size 14px minus size 14px 11 over denominator size 14px x size 14px minus size 14px 2 size 14px y to the power of size 14px 2 size 14px plus size 14px 2 end fraction. Nilai fungsi begin mathsize 14px style f left parenthesis x comma space y right parenthesis end style jika  begin mathsize 14px style x equals negative 3 end style dan  begin mathsize 14px style y equals 7 end style adalah ....

  1. begin mathsize 14px style negative 28 over 33 end style

  2. size 14px minus size 14px 2 over 33  

  3. begin mathsize 14px style negative 2 over 99 end style

  4. begin mathsize 14px style 2 over 33 end style 

  5. begin mathsize 14px style 28 over 33 end style

I. Roy

Master Teacher

Mahasiswa/Alumni Universitas Negeri Surabaya

Jawaban terverifikasi

Jawaban

jawabannya adalah B.

Pembahasan

Dari soal, diberikan fungsi  begin mathsize 14px style f colon straight real numbers cross times straight real numbers rightwards arrow straight real numbers end style   dengan size 14px f begin mathsize 14px style left parenthesis x comma y right parenthesis end style size 14px equals fraction numerator size 14px minus size 14px 2 size 14px x to the power of size 14px 2 size 14px plus size 14px 5 size 14px y size 14px minus size 14px 11 over denominator size 14px x size 14px minus size 14px 2 size 14px y to the power of size 14px 2 size 14px plus size 14px 2 end fraction . Akan dicari nilai fungsi begin mathsize 14px style f left parenthesis x comma space y right parenthesis end style jika  begin mathsize 14px style x equals negative 3 end style dan  begin mathsize 14px style y equals 7 end style.

Subtitusi  undefined dan  undefineddidapat

table attributes columnalign right center left columnspacing 0px end attributes row cell size 14px f begin mathsize 14px style left parenthesis negative 3 , space 7 right parenthesis end style end cell size 14px equals cell fraction numerator size 14px minus size 14px 2 begin mathsize 14px style left parenthesis negative 3 right parenthesis end style to the power of size 14px 2 size 14px plus size 14px 5 begin mathsize 14px style left parenthesis 7 right parenthesis end style size 14px minus size 14px 11 over denominator begin mathsize 14px style left parenthesis negative 3 right parenthesis end style size 14px minus size 14px 2 begin mathsize 14px style left parenthesis 7 right parenthesis end style to the power of size 14px 2 size 14px plus size 14px 2 end fraction end cell row blank size 14px equals cell fraction numerator size 14px minus size 14px 2 begin mathsize 14px style left parenthesis 9 right parenthesis end style size 14px plus size 14px 35 size 14px minus size 14px 11 over denominator begin mathsize 14px style left parenthesis negative 3 right parenthesis end style size 14px minus size 14px 2 begin mathsize 14px style left parenthesis 49 right parenthesis end style size 14px plus size 14px 2 end fraction end cell row blank size 14px equals cell fraction numerator size 14px minus size 14px 18 size 14px plus size 14px 35 size 14px minus size 14px 11 over denominator begin mathsize 14px style left parenthesis negative 3 right parenthesis end style size 14px minus size 14px 98 size 14px plus size 14px 2 end fraction end cell row blank size 14px equals cell fraction numerator size 14px 6 over denominator size 14px minus size 14px 99 end fraction end cell row blank size 14px equals cell size 14px minus size 14px 2 over size 14px 33 end cell end table 

Jadi jawabannya adalah B.

28

0.0 (0 rating)

Pertanyaan serupa

Diberikan f:R×R→R dengan . Nilai fungsi tersebut jika x=4 dan y=5adalah ....

27

0.0

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

Produk Lainnya

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