Originally Posted by franckherve1 but the base is not 25 ...there's nothing so i guess the base should be 10 Yes, the log a means that the base is 10. May be: 1/log25=1/1.397 =0.7

Last edited by blertta; Oct 19th 2008 at 02:46 AM.

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25^(1/log(25))=x log[25^(1/log(25))]=log[x] log(25)*1/log(25)=log[x] 1=log[x] base (10 e or whatever) = x

Originally Posted by franckherve1 1/log 25 25 what's its value? Please, can you give the question more clearly? Do you want to know the value of 1/log25?

let x be the value of 25^(1/log25) so 25^(1/log25) = x log(25)x = 1/log25, where (25) is the base (log of x to the base 25 is 1/log25) then, so, x = 10

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