Answers

2014-02-03T18:07:34+08:00
1! = 1
2! = 1 * 2
3! = 1 * 2 * 3

there for
1!+2!+3! = 1 + (1 * 2 ) + (1 * 2 * 3) = 9
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2014-02-03T20:07:42+08:00
9 . . . . .. . . . . . . . . . .
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