Page 2 of 2 FirstFirst 12
Results 16 to 19 of 19

Math Help - log

  1. #16
    Junior Member
    Joined
    Sep 2007
    Posts
    66
    Quote Originally Posted by franckherve1 View Post
    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; October 19th 2008 at 02:46 AM.
    Follow Math Help Forum on Facebook and Google+

  2. #17
    Senior Member vincisonfire's Avatar
    Joined
    Oct 2008
    From
    Sainte-Flavie
    Posts
    469
    Thanks
    2
    Awards
    1

    Reply

    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
    Follow Math Help Forum on Facebook and Google+

  3. #18
    Junior Member
    Joined
    Sep 2007
    Posts
    66
    Quote Originally Posted by franckherve1 View Post
    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?
    Follow Math Help Forum on Facebook and Google+

  4. #19
    Junior Member ihmth's Avatar
    Joined
    Jan 2008
    Posts
    44
    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,
     logx/log25 = 1/log25
     logx = 1
    so, x = 10
     25^[1/log(25)] = 10
    Follow Math Help Forum on Facebook and Google+

Page 2 of 2 FirstFirst 12

Search Tags


/mathhelpforum @mathhelpforum