Thread: Derivative
View Single Post
  #6  
Old September 18th, 2007, 05:12 PM
taurus taurus is offline
Member
  
Join Date: Sep 2007
Posts: 202
Country:
Thanks: 52
Thanked 1 Time in 1 Post
taurus is on a distinguished road
Default
Quote:
Originally Posted by Krizalid View Post
Uhhhmm, it's easier if we write f(x) as

f(x)=\ln(8x+3)-\ln(5x+8)\implies f'(x)=\frac8{8x+3}-\frac5{5x+8}
i thought lnx was 1/x?
Reply With Quote