Mathematics, 13.08.2021 16:50, VICTURN3666

Cho ba vị từ P(x), Q(x), R(x) xác định như sau: P(x) = {x  4}, Q(x) = {x + 3 là số lẻ}, R(x) = {x+ 2 < 5}

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Cho ba vị từ P(x), Q(x), R(x) xác định như sau: P(x) = {x  4}, Q(x) = {x + 3 là số lẻ}, R(x) = {x+...