Quais são as classes de equivalência de 2 e de 3 para a congruência módulo 4 em Z? {...,-10,-6,-2,2,6,10,...} e {...,-9,-5,-1,3,7,11,...} {...,-1...

Quais são as classes de equivalência de 2 e de 3 para a congruência módulo 4 em Z?


{...,-10,-6,-2,2,6,10,...} e {...,-9,-5,-1,3,7,11,...}
{...,-10,-6,-2,2,6,10,...} e {...,-8,-4,0,4,8,12,...}
{...,-9,-5,-1,3,7,11,...} e {...,-8,-4,0,4,8,12,...}
{...,-9,-5,-1,3,7,11,...} e {...,-10,-6,-2,2,6,10,...}