hopegyorgy hopegyorgy
  • 16-10-2018
  • Mathematics
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Solve the inequality |x| < 5. {x|-5 < x < 5} {x|x < -5 ∪ x > 5} {x|x -5 ∪ x < 5}

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kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 25-10-2018

ANSWER

The correct answer is A

{[tex]x|-5<\:x<\:5[/tex]}


EXPLANATION

[tex]|x|<5[/tex]


This implies that

[tex]x<5\:or\:-x<5[/tex]


We solve the compound inequality to obtain,


[tex]x<5\:or\:x>-5[/tex]

Remember that, dividing through by negative 1 reverses the inequality sign

The solution set is

{[tex]x|-5<\:x<\:5[/tex]}


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