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Mathematics 20 Online
OpenStudy (anonymous):

which of the following intervals represents the set (2,5)U[3,6] a.(1,6] b. (4,6] c. [2,4] d. (2,6]

OpenStudy (welshfella):

U means union so all 4 are included in the set the interval lists lowest and the highest - but watch out for the parentheses

OpenStudy (welshfella):

* all 4 numbers

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