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Pertanyaan

Himpunan penyelesaian dari 3 2 x − 6. 3 x < 27 adalah ....

Himpunan penyelesaian dari  adalah ....

  1. open curly brackets x left enclose x less than negative 3 comma x element of R close curly brackets

  2. open curly brackets x left enclose x less than negative 2 comma x element of R close curly brackets

  3. open curly brackets x left enclose x less than 2 comma x element of R close curly brackets

  4. open curly brackets x left enclose x greater than 2 comma x element of R close curly brackets

  5. open curly brackets x left enclose x greater than 3 comma x element of R close curly brackets

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F. Kurnia

Master Teacher

Mahasiswa/Alumni Universitas Jember

Jawaban terverifikasi

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Pembahasan

3 to the power of 2 straight x end exponent minus 6.3 to the power of straight x less than 27  3 to the power of 2 straight x end exponent minus 6.3 to the power of straight x minus 27 less than 0  Misal space 3 to the power of straight x equals straight a space maka  straight a squared minus 6 straight a minus 27 less than 0  left parenthesis straight a plus 3 right parenthesis left parenthesis straight a minus 9 right parenthesis less than 0

negative 3 less than straight a less than 9  minus 3 less than 3 to the power of straight x less than 9  minus 3 less than 3 to the power of straight x rightwards arrow berlaku space untuk space setiap space nilai space straight x  dan  3 to the power of straight x less than 9 rightwards arrow 3 to the power of straight x less than 3 squared rightwards arrow straight x less than 2  Sehingga space didapat space himpunan space penyelesaian  left curly bracket x vertical line x less than 2 comma x element of R right curly bracket

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