use integration by parts to find the integral of ln(x+1) dx
any help would be appreciated
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Don't forget the absolute value.
how does the integral of x/(x+1) become the integral of 1??
because when you let and , and
Whoah! Careful now.
You could split
which is fine.
But here's a short cut - notice that one integral of 1 is x + 1, and choose u = x+1 for du = 1.
Last edited by tom@ballooncalculus; Jan 28th 2009 at 12:22 PM.
Reason: + C !
Don't integrate - balloontegrate! Balloon Calculus: worked examples from past papers
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