How do they derive from equation A to B?

  • Thread starter timeforchg
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  • #1
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My question is how to get from equation A to B.
By using partial fractions? differential? any methods?
 

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  • #2
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My question is how to get from equation A to B.
By using partial fractions? differential? any methods?
Don't use attachments as it makes very cumbersome reading the question and answering it. Write down the stuff using LaTeX for mathematics.

DonAntonio
 
  • #3
chiro
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Hey timeforchg and welcome to the forums

Do you have any conditions? Are you assuming A = B and trying to go from A to B while maintaining an equality?
 
  • #4
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Hey timeforchg and welcome to the forums

Do you have any conditions? Are you assuming A = B and trying to go from A to B while maintaining an equality?

yes. I think is more simplifying the equation.

I am trying to find the limit z = 0. When I see inside my text before they use l'hopital rule, they simplified the equation A to B. Thereafter they apply the l'hopital rule
 
  • #5
chiro
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Ohh, next time you use a limit please specify this in the equation so there is no ambiguity or confusion.

I have a feeling you have got the equation wrong: if you take the limit in this case to go to zero, the top goes to 0 but the bottom doesn't (it goes to 3-j which may not be zero and is only zero if 3 = j).
 
  • #6
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there is no + in eq A for the denominator
 
  • #7
chiro
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Can you please write out the expression on the denominator?
 
  • #8
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SOLVED!! Thanks a lot guys!! Appreciate it.
 

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