Frage
Solve the absolute value inequality |x|<1 Select the correct choice and, if necessary, fill in the answer boxes to complete your choice. A. The solution set is x|-□ . B. The solution is the empty set.
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Antwort
The answer is A. The solution set is {x | -1 < x < 1}.
Erklärung
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Analyze the absolute value inequality: The given inequality is $$|x| < 1$$. This inequality represents all values of $$x$$ whose distance from 0 is less than 1.
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Apply the definition of absolute value inequalities: The inequality $$|x| < a$$ is equivalent to $$-a < x < a$$. This is a fundamental property of absolute values.
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Solve the inequality: Applying this property to our inequality, $$|x| < 1$$, we get $$-1 < x < 1$$. This means $$x$$ must lie between -1 and 1.
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Express the solution set: Therefore, the solution set is $$\{x | -1 < x < 1\}$$. This set notation describes all real numbers $$x$$ that are strictly greater than -1 and strictly less than 1.