A = {1,2,3}
B = {1,2,5}
A U B = { 1,2,3,5}
A = {1,2,3} -
AUB-A = {5}
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Kalau pakai cara ya harus digambar pakai diagramnya biar jelas
A = {1,2,3}
B = {1,2,5}
A U B = { 1,2,3,5}
A = {1,2,3} -
AUB-A = {5}