Which of the following expression is true for a number greater than -2 but less than 7?
- {x|-2 < x < 7}
- {x|-2 > x > 7}
- {x|-2 ≥ x ≥ 7}
- None of these
Explanation
The expression that represents "a number greater than -2 but less than 7" is:
{x | -2 < x < 7}
This notation correctly indicates x is between -2 and 7, excluding both -2 and 7.
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