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Himpunan penyelesaian pertidaksamaan 2 ​ lo g 2 x + 2. 2 ​ lo g 2 x > 2 adalah...

Himpunan penyelesaian pertidaksamaan  adalah...

  1. open curly brackets x vertical line 1 less than x less than 4 close curly brackets

  2. open curly brackets x vertical line 1 fourth less than x less than 1 close curly brackets

  3. open curly brackets x vertical line x less than 1 fourth space atau straight space x greater than 1 close curly brackets

  4. open curly brackets x vertical line 0 less than x less than 1 fourth space atau straight space x greater than 1 close curly brackets

  5. open curly brackets x vertical line 0 less than x less than 1 space atau straight space x greater than 4 close curly brackets

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Master Teacher

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Pembahasan

log presubscript space presuperscript 2 superscript 2 space x plus 2. log presubscript space presuperscript 2 space 2 x greater than 2 open parentheses log presubscript space presuperscript 2 space x close parentheses squared plus 2. open parentheses log presubscript space presuperscript 2 space 2 plus log presubscript space presuperscript 2 space space x close parentheses greater than 2 M i s a l n y a space l presubscript space presuperscript 2 o g space x equals a a squared plus 2 open parentheses 1 plus a close parentheses greater than 2 a squared plus 2 plus 2 a greater than 2 a squared plus 2 a greater than 0 Didapat a less than negative 2 space atau space a greater than 0 log presubscript space presuperscript 2 space x less than negative 2 left right double arrow x less than 2 to the power of negative 2 end exponent equals 1 fourth atau space log presubscript straight space presuperscript 2 space x greater than 0 left right double arrow x greater than 1 Karena space x space adalah space numerus space maka berlaku space syarat space x space greater than space 0 Jika space diiriskan space didapat space hasil 0 less than x less than 1 fourth space atau space x greater than 1

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Nilai x yang memenuhi x l o g 2 x 2 x l o g 4 x ​ < 2 1 ​ a d a l ah ...

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