what does 5! mean? Watch

RVS2009
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#1
Report Thread starter 8 years ago
#1
What does x! (e.g. 5!) actually mean..

theres a question:

3!
___ = ............

5!
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Andylol
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#2
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#2
Factorial.

3! = 1x2x3
5! = 1x2x3x4x5

3! / 5! = 1/20 = 0.05
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james.h
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#3
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Maybe looking at this thread will help.

http://www.thestudentroom.co.uk/show...6#post22572979
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G550NDH
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#4
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5x4x3x2x1
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CJN
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#5
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http://mathworld.wolfram.com/Factorial.html
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