Võrratusete

Võrratusete is an Estonian term that translates to "inequalities" in English. In mathematics, an inequality is a statement that compares two values or expressions that are not necessarily equal. Unlike an equation, which asserts that two quantities are equal, an inequality asserts that one quantity is greater than, less than, greater than or equal to, or less than or equal to another quantity.

The most common types of inequalities involve the symbols < (less than), > (greater than), ≤ (less than or equal to), and ≥ (greater than or equal to). For example, the statement "x is less than 5" can be written as x < 5. The statement "y is greater than or equal to 10" can be written as y ≥ 10.

Inequalities are fundamental in various branches of mathematics, including algebra, calculus, and optimization. They are used to describe ranges of values, set constraints, and define regions in coordinate systems. Solving inequalities often involves similar techniques to solving equations, but with some key differences, particularly when multiplying or dividing by negative numbers, which reverses the direction of the inequality sign. The solution to an inequality is typically a set of values, often represented as an interval or a union of intervals on the number line.

---