3P3 + 4P4 + 5P5 =......
Matematika
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Pertanyaan
3P3 + 4P4 + 5P5 =......
1 Jawaban
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1. Jawaban Anonyme
Bab Permutasi
Matematika SMA Kelas X
nPn = n !
3P3 + 4P4 + 5P5 = 3 ! + 4 ! + 5 !
= (3 . 2 . 1) + (4 . 3 . 2 . 1) + (5 . 4 . 3 . 2. 1)
= 6 + 24 + 120
= 150