Let A = {x R :
Chapter 1, Problem 1.30(choose chapter or problem)
Let A = {x R : |x 1| 2}, B = {x R : |x| 1} and C = {x R : |x + 2| 3}.(a) Express A, B and C using interval notation.(b) Determine each of the following sets using interval notation:A B, A B, B C, B C.
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