Answer
[1, 2]
Work Step by Step
For interval notation, use the two numerical values separated by a comma: $$1,2$$ Then, add brackets because both values are included, less than *or equal to* and greater than *or equal to*: $$[1, 2]$$
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 1 - Section 1.1 - Real Numbers - 1.1 Exercises - Page 11: 54
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