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- DragonSong April 22, 2022 в 20:53
- The set of integers consists of all whole numbers (positive, negative, and zero) and can be denoted by the set Z = {..., -3, -2, -1, 0, 1, 2, 3, ...}. Opposite numbers are numbers that are the same distance from zero on a number line, but on opposite sides. For example, the opposite of 4 is -4.

2. The set of rational numbers consists of all numbers that can be written as a fraction, where the numerator and denominator are both integers. This set can be denoted by Q = {a/b | a,b ? Z, b ? 0}. Rational numbers can also be written in decimal form, which is a repeating or terminating decimal. Examples of rational numbers include 0.25 (1/4), 0.333... (1/3), and -2.5 ( -5/2).

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