Odpowiedź:
Szczegółowe wyjaśnienie:
12!-11!= 11!(12-1) = 11!*11
11!= 1*2*3*...*11
12!=1*2*3*...*11*12
10!-9!=9!(10-1) = 9!*9
[tex]\frac{11!*11}{9!*9} =\frac{10*11*11}{9}= 134 \frac{4}{9}[/tex]
[tex]\frac{12 ! - 11 !}{10 ! - 9 !} = \frac{11 ! * 12 - 11 !}{9 ! * 10 - 9 !} = \frac{11 ! *(`12- 1)}{9 ! *( 10 - 1 )}[/tex] = [tex]\frac{9 ! * 10 * 11 * 11}{9 ! * 9} = \frac{10*121}{9} = \frac{1210}{9} = 134 \frac{4}{9}[/tex]
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Verified answer
Odpowiedź:
Szczegółowe wyjaśnienie:
12!-11!= 11!(12-1) = 11!*11
11!= 1*2*3*...*11
12!=1*2*3*...*11*12
10!-9!=9!(10-1) = 9!*9
[tex]\frac{11!*11}{9!*9} =\frac{10*11*11}{9}= 134 \frac{4}{9}[/tex]
Odpowiedź:
[tex]\frac{12 ! - 11 !}{10 ! - 9 !} = \frac{11 ! * 12 - 11 !}{9 ! * 10 - 9 !} = \frac{11 ! *(`12- 1)}{9 ! *( 10 - 1 )}[/tex] = [tex]\frac{9 ! * 10 * 11 * 11}{9 ! * 9} = \frac{10*121}{9} = \frac{1210}{9} = 134 \frac{4}{9}[/tex]
Szczegółowe wyjaśnienie: