Sendo A= {X E R/-5 <_ X < 15} e B={X E R/-2 X <_ 2 }
A) A u B
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A={-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14}
B={-1,0,1,2}
AUB={-1,0,1,2}
B={-1,0,1,2}
AUB={-1,0,1,2}
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