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Mentok ngerjain soal? Foto aja pake aplikasi CoLearn. Anti ribet ✅Cobain, yuk!

Diketahui: A = {x l 4 < x < 10,x bilangan asli} B = {x l 7 < x < 10,x bilangan cacah} Maka, A u B adalah .... A. {4, 5, 6, 7, 8, 9} B. {4, 5, 6, 7, 8, 9, 10} C. {5, 6, 7, 8, 9, 10} D. {4, 5, 6, 7, 7, 8, 8, 9, 9, 10}

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