Math Problem Statement

|x|>−1

Solution

To solve the inequality x>1|x| > -1, we need to consider the properties of absolute values and inequalities.

Step 1: Understand the inequality

The absolute value x|x| represents the distance of xx from 0 on the number line. By definition:

x0|x| \geq 0

This means that x|x| is always non-negative. The smallest value x|x| can take is 0 (when x=0x = 0).

Step 2: Analyze the inequality

The inequality is x>1|x| > -1. Since x|x| is always non-negative and 1-1 is negative, x|x| will always be greater than 1-1 for any real number xx.

Conclusion:

Since x|x| is always greater than 1-1 for any real number xx, the solution is:

All real numbers xR\boxed{\text{All real numbers} \ x \in \mathbb{R}}

This means every real number satisfies the inequality x>1|x| > -1.

Would you like details on this explanation?


Here are five related questions:

  1. What if the inequality were x0|x| \geq 0 instead of x>1|x| > -1?
  2. How would the solution change if the inequality were x>1|x| > 1 instead of x>1|x| > -1?
  3. What are the implications if the inequality was x<1|x| < 1 instead?
  4. How would the solution change if the inequality were x2|x| \geq 2?
  5. What is the effect of changing the sign inside the absolute value, such as x>1|-x| > -1?

Tip: Remember that the absolute value of any real number is always non-negative, so inequalities involving absolute values often have different properties from regular linear inequalities.

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Math Problem Analysis

Mathematical Concepts

Absolute Value
Inequalities

Formulas

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Theorems

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Suitable Grade Level

Grades 7-9