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Verified answer
Mapel : MatematikaBab : Himpunan
B = { x | 2 < x ≤ 13, x ∈ bilangan prima }
B = { 3, 5, 7, 11, 13 }
n(B) = 5
Banyaknya himpunan bagian dari B yang memiliki tiga anggota adalah 10 bagian, yaitu :
{ 3, 5, 7} , { 3, 5, 11} , { 3, 5, 13 } , { 3, 7, 11 } , { 3, 7, 13 } , { 3, 11, 13 } , { 5, 7, 11 } , { 5, 7, 13 } , { 5, 11, 13 } , { 7, 11, 13 }
Jawaban B.10