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O 5!x4!= 20 l x, A^2, 120x 24 = 2880, © 5!+4) +9!(3628802 X, (2, 120 +24.= 144, 3 5!-4?.7, 120 -24=96, 4, 442, 21, ニ, 12, 24, ニ /Z, = 12, 446, 87, -336., 3ベライメ, ST, 8!, 8×ヌ×6xと, 336, 336
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A-3, A BC a 3-persons Arrange, A 6.C, How many ways ?., A C, B, Permutatin Er, combination., 6-wayn,, B A C, A, B C, A B, B A, makes caleulation, easy., C., デン, Jsé Porc., 10-persons. a Arrange, because no.-, + Principalert Additton eh, are large No, A+ B ways., A orB =, (H, Train, Bus. Rickshaw It1+1 =3 ways., * Principaled multiphution :-, T/18/R., A and B = A.B cways., (4H), FIBIR., RiT, RB 3x3=9, BB, BR., R R., TR
