Frage

Solve the absolute value inequality
|x|<1</tex> 
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.

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

  1. 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.

  2. 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.

  3. 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.

  4. 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.

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