Roboguru

Diektahui fungsi dan carilah jika diketahui: c.

Pertanyaan

Diektahui fungsi begin mathsize 14px style f colon R rightwards arrow R end style dan begin mathsize 14px style g colon R rightwards arrow R end style carilah begin mathsize 14px style g ring operator f space dan space f ring operator g end style jika diketahui:

c. begin mathsize 14px style f left parenthesis x right parenthesis equals 2 x minus 1 space dan space g left parenthesis x right parenthesis equals x squared minus 1 end style

 

  1. ...space

  2. ...

Pembahasan Soal:

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell g ring operator f end cell equals cell g left parenthesis f left parenthesis x right parenthesis right parenthesis end cell row cell g ring operator f end cell equals cell left parenthesis 2 x minus 1 right parenthesis squared minus 1 end cell row blank equals cell 4 x squared minus 4 x plus 1 minus 1 end cell row blank equals cell 4 x squared minus 4 x end cell end table end style 

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell f ring operator g end cell equals cell f left parenthesis g left parenthesis x right parenthesis right parenthesis end cell row cell f ring operator g end cell equals cell 2 open parentheses x squared minus 1 close parentheses minus 1 end cell row blank equals cell 2 x squared minus 2 minus 1 end cell row blank equals cell 2 x squared minus 3 end cell end table end style

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 07 Februari 2021

Ruangguru

RUANGGURU HQ

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

Coba GRATIS Aplikasi Ruangguru

Produk Ruangguru

Produk Lainnya

Hubungi Kami

Ikuti Kami

©2021 Ruangguru. All Rights Reserved