An inequality is a mathematical sentence between two quantities that are different or not equal.
To express an inequality, we use one of the following symbols
< is less than
≤ is less than or equal to
> is bigger than
≥ is bigger than or equal to
≠ is not equal to
Examples of inequalities
88.9 > 88.2 ( 88.9 is bigger than 88.2 )
4 + 9 ≠ 4 + 8 ( 4 + 9 is not equal to 4 + 8)
-8 < -2 ( - 8 is smaller than -2)
12 + 3 ≥ 3 × 4 (12 + 3 is bigger than or equal to 3 × 4 )
2 ≤ 4 (2 is smaller than or equal to 4)
2x + 8 > 4
(1/2)x ≤ -1
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