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Nilai  yang memenuhi pertidaksamaan  adalah....

Pertanyaan

Nilai undefined yang memenuhi pertidaksamaan begin mathsize 14px style square root of 3 x minus 6 end root less or equal than square root of x plus 2 end root space comma space x element of straight real numbers end style adalah....undefined 

  1. begin mathsize 14px style x greater or equal than 4 end style 

  2. begin mathsize 14px style x greater or equal than 2 end style 

  3. begin mathsize 14px style x greater or equal than negative 2 end style 

  4. begin mathsize 14px style 2 less or equal than x less or equal than 4 end style 

  5. begin mathsize 14px style negative 2 less or equal than x less or equal than 4 end style 

Pembahasan Soal:

Kondisi : Jika kedua ruas bernilai positif maka

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell square root of 3 x minus 6 end root end cell less or equal than cell square root of x plus 2 end root space space space kuadratkan space kedua space ruas end cell row cell 3 straight x minus 6 end cell less or equal than cell straight x plus 2 end cell row cell 2 straight x end cell less or equal than 8 row straight x less or equal than 4 row blank blank blank end table end style 

Syarat lain :

table attributes columnalign right center left columnspacing 0px end attributes row cell size 14px 3 size 14px x size 14px minus size 14px 6 end cell size 14px greater or equal than size 14px 0 row cell size 14px 3 size 14px x end cell size 14px greater or equal than size 14px 6 row size 14px x size 14px greater or equal than size 14px 2 row blank blank blank row cell size 14px x size 14px plus size 14px 2 end cell size 14px greater or equal than size 14px 0 row size 14px x size 14px greater or equal than cell size 14px minus size 14px 2 end cell end table 

Daerah penyelesaian :

 

Jadi jawaban yang tepat adalah B

 

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 04 Februari 2021

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