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Old 2020-05-10, 02:38   #2
Batalov
 
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Mar 2008
Phi(4,2^7658614+1)/2

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Quote:
Originally Posted by othermath View Post
I don't know if this is true for very large values ​​of x, (x € R).
What is x! for x € R ?
Define it and then we can talk about derivatives.
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