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instructions for autist


Thread replies: 4
Thread images: 2

my brain is having autist moment. can anyone help me out with these instructions:

Several intervals can be combined into one region using the "set union" operation, ∪, 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 3 but excluding −2 and 3 as a union of intervals
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File: real flan hours.gif (190KB, 192x192px) Image search: [Google] [Yandex] [Bing]
real flan hours.gif
190KB, 192x192px
[-5,-3]U[-1,2]U(4,inf)
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>>7799271
that was wrong
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>>7799279
no u
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