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Himpunan penyelesaian pertidaksamaan ∣ 3 x − 7 ∣ ≤ 8 adalah ...

Himpunan penyelesaian pertidaksamaan  adalah ...

  1. open curly brackets right enclose x space minus 1 third less or equal than x less or equal than 5 comma space element of straight real numbers close curly brackets

  2. open curly brackets right enclose x space 1 half less or equal than x less or equal than 5 comma space x element of straight real numbers close curly brackets

  3. open curly brackets right enclose x space 1 third less or equal than x less or equal than 6 comma space x element of straight real numbers close curly brackets

  4. open curly brackets right enclose x space 1 fourth less or equal than x less or equal than negative 6 comma space x element of straight real numbers close curly brackets

  5. open curly brackets right enclose x space 1 third less or equal than x less or equal than negative 5 comma space x element of straight real numbers close curly brackets

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Jawaban terverifikasi

Jawaban

jawaban yang tepat adalah A.

jawaban yang tepat adalah A.

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Sifat pertidaksamaan nilai mutlak: "Jika maka " Diperoleh: Maka, himpunan penyelesaian pertidaksamaan adalah . Jadi, jawaban yang tepat adalah A.

Sifat pertidaksamaan nilai mutlak:

"Jika open vertical bar f open parentheses x close parentheses close vertical bar less or equal than a maka negative a less or equal than f open parentheses x close parentheses less or equal than a"

Diperoleh:

table attributes columnalign right center left end attributes row space cell open vertical bar 3 x minus 7 close vertical bar end cell cell less or equal than 8 end cell row cell negative 8 less or equal than end cell cell 3 x minus 7 end cell cell less or equal than 8 end cell row cell negative 8 plus 7 less or equal than end cell cell 3 x minus 7 plus 7 end cell cell less or equal than 8 plus 7 end cell row cell negative 1 less or equal than end cell cell 3 x end cell cell less or equal than 15 end cell row cell negative 1 third less or equal than end cell cell fraction numerator 3 x over denominator 3 end fraction end cell cell less or equal than 15 over 3 end cell row cell negative 1 third less or equal than end cell x cell less or equal than 5 end cell end table

Maka, himpunan penyelesaian pertidaksamaan open vertical bar 3 x minus 7 close vertical bar less or equal than 8 adalah open curly brackets right enclose x space minus 1 third less or equal than x less or equal than 5 comma space element of straight real numbers close curly brackets.

Jadi, jawaban yang tepat adalah A.

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Semua nilai x yang memenuhi pertidaksamaan 0 < ∣ x − 3 ∣ ≤ 3 adalah ...

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