physics chemistry maths science forums
become expert I help I sign up I login
refer a friend - earn nickels!!   
 advanced
 
Home
Ask & Discuss Questions
Study Material
Experts Zone
Hang Out!

Ask & Discuss Questions with Community & Experts

 Moderation Team
 90 chars left    advanced
Ask iit jee aieee pet cbse icse state board community Community Discussion Question: LOGARITMS:- if x=e^y-e^-y/e^y+e^-y. show that y=1/2log1+x/1-x to the base e
Forum Index -> Algebra like the article? email it to a friend.  
Author Message
[Post New]5 Sep 2007 18:59:40 IST
    Subject: LOGARITMS:- if x=e^y-e^-y/e^y+e^-y. show that y=1/2log1+x/1-x to the base e
[Up] View Post
smartguymihir (0)

New kid on the Block

Olaaa!! Perrrfect answer. 0  [0 rates]
smartguymihir's Avatar
total posts: 2    
offline Offline
 
    
[Post New]5 Sep 2007 19:24:07 IST
    Subject: Re:LOGARITMS:- if x=e^y-e^-y/e^y+e^-y. show that y=1/2log1+x/1-x to the base e
[Up] View Post
nadeemoidu (1184)

Blazing goIITian

Olaaa!! Perrrfect answer. 200  [292 rates]
nadeemoidu's Avatar
total posts: 487    
offline Offline
x= (ey - e-y)/( ey+ e-y)

=> 1/x = ( ey+ e-y)/(ey - e-y)

=> (1+x) / (1-x) = (ey)/( e-y ) = e2y

=> log(1+x) / (1-x) = 2y
 this reply: 4 points  (with 0 Olaaa!! Perrrfect answer.   in 2 votes )   [?]
 
You have to be logged on to rate
  
 
Forum Index -> Algebra
Go to:   

Top Offers for goIITians
Correspondence Courses
Brilliant Tutorials
Narayana Institute
Aakash Institute
Classroom/Crash Courses
Narayana - Kota , Delhi , Others
Brilliant Tutorials - Class , Crash
Aakash Institute - Medical , Engg
Online Test Series
Brilliant Tutorials
Narayana Institute
Aakash Institute
Mahesh Tutorials
AMITY      Sri Chaitanya