Question

enumere o elemento dos conjunto y={y e u / -10 < y < 10} sendo u o conjunto dos numeros inteiros

Answer 1

Resolução:
y = {-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9} ou seja

-10 < y < 10
-10 < -9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9 <10


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