1. Write the interval of points that are less than -4: 2. Write the set of points from -5 to 2 but excluding -1 and 2 as a union of intervals:
1. Write the interval of points that are less than -4: 2. Write the set of points from -5 to 2 but excluding -1 and 2 as a union of intervals:
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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1. Write the interval of points that are less than -4:
2. Write the set of points from -5 to 2 but excluding -1 and 2 as a union of intervals:
![One common place where you use oo is as an endpoint of an interval. WeBWorK allows you to enter intervals using standard interval notation, including infinite
endpoints. For example, [-2,5) represents an interval that is closed on the left and open on the right, while [2, inf) is an interval that extends infinitely to the right.
Write the interval of points that are less than -4:
Several intervals can be combined into one region using the "set union" operation, U, which is represented as "U" in WeBWorK. For example, [-2,0] U (8,inf)
represents the points from -2 to 0 together with everything bigger than 8.
Write the set of points from -5 to 2 but excluding -1 and 2 as a union of intervals:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc8087351-0861-4b39-9e15-2bf3bb585c8a%2Fcd7f89ce-d557-4fd9-bfd9-098b92d120d1%2Fmbgt8df_processed.jpeg&w=3840&q=75)
Transcribed Image Text:One common place where you use oo is as an endpoint of an interval. WeBWorK allows you to enter intervals using standard interval notation, including infinite
endpoints. For example, [-2,5) represents an interval that is closed on the left and open on the right, while [2, inf) is an interval that extends infinitely to the right.
Write the interval of points that are less than -4:
Several intervals can be combined into one region using the "set union" operation, U, which is represented as "U" in WeBWorK. For example, [-2,0] U (8,inf)
represents the points from -2 to 0 together with everything bigger than 8.
Write the set of points from -5 to 2 but excluding -1 and 2 as a union of intervals:
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