factorial and factorial
Algebra
Level
3
Evaluate: 3(3!) + 4(4!) + .............2011(2011!)
2012!-6
2011!-6
The sum is Very large.Impossible to determine
None
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1 solution
3(3!)=4!-6.In the same way 2011(2011!)=2012!-6 this solution doesn t hold good.some one give me a clear solution.