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There are various things tou can do. Partial fractions. Maybe just a small factoring and a sub.
This leads to
If you feel industrious, you could do the PFD thing.
How exactly does this: Let lead to this:
thats the part i didn't understand, thats why i couldn't use subst. myself.
The aftermath is easy.... Originally Posted by galactus If you feel industrious, you could do the PFD thing. After i posted this, i actually solved it, but i did this before applying PF....the above would take to long...
Multiply and divide by we get:
We now let:
Thus we have:
Last edited by PaulRS; Jan 2nd 2008 at 07:19 AM.
Originally Posted by PaulRS Multiply and divide by That was the critical step i need to know!!
Originally Posted by polymerase You can also avoid substitutions .
The rest follows.
That's brilliant! . . . Thank you!
Here's what I was getting at:
Rewrite as :
Make the subs and we get:
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