Pertanyaan

Nilai x yang memenuhi pertidaksamaan ∣ ∣ ​ 3 x − 5 1 ​ ∣ ∣ ​ < 4 adalah ....

Nilai x yang memenuhi pertidaksamaan  adalah ....

  1. negative 21 over 12 less than straight x less than negative 19 over 12

  2. 19 over 12 less than straight x less than 21 over 12

  3. straight x less than negative 21 over 12 atau space straight x greater than negative 19 over 12

  4. straight x less than 19 over 12 space atau space straight x greater than 21 over 12

  5. straight x less than negative 19 over 12 space atau space straight x greater than 21 over 12

A. Acfreelance

Master Teacher

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Pembahasan

Nilai x yang memenuhi: ​​​​​​​

begin mathsize 14px style open vertical bar fraction numerator 1 over denominator 3 straight x minus 5 end fraction close vertical bar less than 4 rightwards arrow straight A space equals space 1 space semicolon space straight B equals 3 straight x minus 5 semicolon space straight K equals 4    space space space space space space space space space space space space space space space space space space space left parenthesis straight A plus KB right parenthesis left parenthesis straight A space minus space KB right parenthesis space less than 0 space  left parenthesis 1 plus space 12 straight x minus 20 right parenthesis left parenthesis 1 space minus space 12 straight x space plus 20 right parenthesis space less than space 0 space  space space space space space space space space space left parenthesis 12 straight x space minus 19 right parenthesis left parenthesis negative 12 straight x space plus space 21 right parenthesis space less than space 0 end style

Nilai x yang memenuhi: straight x less than 19 over 12 space atau space straight x greater than 21 over 12​​​​​​​

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Nilai-nilai x yang memenuhi pertidaksamaan ∣ ∣ ​ − x 2 + 2 x − 2 ∣ ∣ ​ < 2 adalah ...

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