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November 12th, 2008, 10:35 PM   #1
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How would you evaluate these indefinite integrals?

sin(lnx)/x

and

x/x+x^4

iIve been trying to understand how to do these for the past few hours but no luck

any ideas?
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November 13th, 2008, 03:08 AM   #2
JC
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Re: How would you evaluate these indefinite integrals?

Well, first is .

Can't understand where do you have problems with second integral, or you have written it incorrectly?
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November 13th, 2008, 10:24 AM   #3
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Quote:
Originally Posted by sobadin
x/x+x^4
If you meant x/(x + x^4), cancel x and then use partial fractions. If you still can't finish, show what you can do.
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