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(i) {a,b,c,d,e }P 5 = 5! = 120(ii ){ab,c,d,e }P ii = 4 · 3!·2! = 120

{red, red, red, red, blue, blue, green, green }

Maneras = 8!4! ·2! ·2! = 420

(i)M = 10 · 10· 10 = 1000

(ii )M = 10 · 9 · 8 = 720

(iii )M = 10 · 10· 10 = 1000

(iv )M = 10 · 9 · 8· 7· 6 = 30240

(i)S = {E,L ,E ,V,E ,N }

M E = 6!3! = 120

(ii )S 2 = {L,E ,V,N }

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C ii = 4 = 24

(iii )S 2 = {L,V,N }C ii = 3 = 6

(iv )S 2 = {E,E ,L ,V,N }

P (4, 2) = 12

(i) 1310 = 286

(ii ) 118 = 165

(iii ) 127 = 220

(iv ) 53 87 =80

(v) 5

3

8

7+ 5

4

8

6+ 5

5

8

5=276

12!3! · 3! · 3! · 3! = 369600

14!3! · 3! · 2! · 2! = 369600

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