SOLUTION: Evaluate or simplify (n-1)!
Algebra.Com
Question 979196: Evaluate or simplify (n-1)!
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Evaluate or simplify (n-1)!
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= (n-1)*(n-2)*(n-3)*(n-4)...*1
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eg, 6! = 6*5*4*3*2*1 = 720
It's called factorial.
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