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Himpunan penyelesaian pertaksamaan ∣ ∣ ​ x 2 − x − 1 ∣ ∣ ​ > 1 adalah...

Himpunan penyelesaian pertaksamaan adalah...

  1. left curly bracket x vertical line x less than negative 1 right curly bracket union left curly bracket x vertical line minus 1 less than x less than negative 1 right curly bracket union left curly bracket x vertical line x greater than 1 right curly bracket

  2. left curly bracket x vertical line x less than negative 1 right curly bracket union left curly bracket x vertical line 0 less than x less than 2 right curly bracket union left curly bracket x vertical line x greater than 2 right curly bracket

  3. left curly bracket x vertical line x less than negative 1 right curly bracket union left curly bracket x vertical line minus 1 less than x less than negative 1 right curly bracket union left curly bracket x vertical line x greater than 2 right curly bracket

  4. left curly bracket x vertical line x less than negative 1 right curly bracket union left curly bracket x vertical line 0 less than x less than 1 right curly bracket union left curly bracket x vertical line x greater than 1 right curly bracket

  5. left curly bracket x vertical line x less than negative 1 right curly bracket union left curly bracket x vertical line 0 less than x less than 1 right curly bracket union left curly bracket x vertical line x greater than 2 right curly bracket

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R. RGFLSATU

Master Teacher

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Pembahasan

open vertical bar x squared minus x minus 1 close vertical bar greater than 1  open vertical bar a close vertical bar greater than 1 comma space m a k a colon  a greater than 1 space a t a u space a less than negative 1  x squared minus x minus 1 greater than 1  x squared minus x minus 1 minus 1 greater than 0  x squared minus x minus 2 greater than 0  left parenthesis x minus 2 right parenthesis left parenthesis x plus 1 right parenthesis greater than 0

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Tentukan himpunan penyelesaian dari setiap pertidaksamaan nilai mutlak di bawah ini. d. ∣ ∣ ​ x 2 − 5 ∣ ∣ ​ ≥ 4

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