9题 = 101 (n+1)!- = nn!n(n+1)!- nn!

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9题=101(n+1)!-=n*n!n(n+1)!-n*n!9题=101(n+1)!-=n*n!n(n+1)!-n*n!9题=101(n+1)!-=n*n!n(n+1)!-n*n!jこおっっk

9题 = 101 (n+1)!- = n*n!n(n+1)!- n*n!
9题 = 101 (n+1)!- = n*n!n(n+1)!- n*n!

9题 = 101 (n+1)!- = n*n!n(n+1)!- n*n!
jこおっっk