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TranscendArcu
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Homework Statement
Let [itex]A = {x\in R | |x| >1}, B = {x\in R | -2<x<3}[/itex]. Find A \cup B and A\cap B
The Attempt at a Solution
I thought I might attempt this via a number line. Since I don't know how to make a number line in Latex, I'll describe it. I have A as being all of R except for the region bounded from -1 < x < 1. I have B as the region bounded from -2<x<3.I then observed, [itex]A \cup B = R[/itex] and [itex]A \cap B = { x \in R | -2<x<-1, 1<x<3} [/itex]. But I'm sure if I have used the correct notation or if these answers are even correct.