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En los problemas 15 a 18, escriba el intervalo en forma de desigualdad. $[-5, \infty)$

   En los problemas 15 a 18, escriba el intervalo en forma de desigualdad.
 $[-5, \infty)$

Precálculo con avances de cálculo

Precálculo con avances de cálculo

Dennis G. Zill, José… 5th Edition

Chapter 1, Problem 18

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Step 1: The interval $[-5, \infty)$ represents all real numbers greater than or equal to -5. Show more…

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En los problemas 15 a 18, escriba el intervalo en forma de desigualdad. $[-5, \infty)$

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Key Concepts

Interval Notation

Interval notation is a concise way to represent a set of numbers lying between certain endpoints using brackets and parentheses. Brackets [ ] indicate that an endpoint is included in the set (closed interval), while parentheses ( ) indicate that an endpoint is excluded (open interval).

Inequality Notation

Inequality notation expresses the same set of numbers using inequality symbols such as '?', '>', '?', and '<'. It provides an alternative representation that explicitly shows the relational comparison between the variable and the endpoints.

Infinity in Intervals

The concept of infinity in intervals represents an unbounded limit. The symbol '?' is used to denote that the set extends indefinitely in one direction; however, since infinity is not a number, it is always paired with a parenthesis to indicate that it is not included in the set.

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