1. 

   ping2002 Member

   at the very last part of the solution.
   
   in the function we intergrate from 0 ~ M (x f(x) dx )
   
   but why in the next step, the solution gives
   
   (∅(M1) - ∅(-infinity))
   
   from the integration, I suppost it should be from 0 to M1,
   Please someone help, I am confused...

    

   ping2002, Aug 10, 2008

   #1
2. 

   ping2002 Member

   I think I get it now.
   
   through the function
   
   log(0) gives the answer -infinity

    

   ping2002, Aug 12, 2008

   #2

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in