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Write the set of points from -8 to -2 but excluding -3 and -2 as a union of intervals. I wrote: (-3,-2)U[-8,-4]. It tells me I'm wrong. how?

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  • Write the set of points from -8 to -2 but excluding -3 and -2 as a union of intervals. I wrote: (-3,-2)U[-8,-4]. It tells me I'm wrong. how?


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