Let A = {-6, -12⁄4, -5⁄8, -√3, 0, ¼, 1, 2π, 3, √12}. List all the elements of A that belong to each set. Integers

검증된 단계별 안내

First, recall the definition of integers: integers are whole numbers that can be positive, negative, or zero, but they do not include fractions or irrational numbers.

Next, examine each element of the set \(A = \{-6, -\frac{12}{4}, -\frac{5}{8}, -\sqrt{3}, 0, \frac{1}{4}, 1, 2\pi, 3, \sqrt{12}\}\) to determine if it is an integer.

Simplify any elements that are fractions or radicals to see if they reduce to integers. For example, simplify \(-\frac{12}{4}\) and \(\sqrt{12}\).

Check if the simplified values are whole numbers without fractional or decimal parts. If yes, include them in the list of integers.

Finally, list all elements from \(A\) that meet the integer criteria based on your analysis.

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주요 개념

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Definition of Integers

Integers are whole numbers that can be positive, negative, or zero, but do not include fractions or decimals. Examples include -3, 0, and 7. Understanding this helps identify which elements from a set qualify as integers.

Simplification of Fractions and Radicals

To determine if elements like -12/4 or √12 are integers, simplify them first. For example, -12/4 simplifies to -3, an integer, while √12 simplifies to 2√3, which is not an integer. Simplification clarifies membership in the integer set.

Distinguishing Between Number Types

Recognizing the difference between integers, rational numbers, irrational numbers, and real numbers is crucial. For instance, 2π is irrational and not an integer, while 3 is an integer. This distinction aids in correctly classifying elements.