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Homework Statement
Evalute the integral
∫ [x / 1 + x] dx
Homework Equations
∫ [x / 1 + x] dx
The Attempt at a Solution
I forgot how to do solve this type of integral, or never had enough practice. And this problem is actually for a physics problem :-) And my algebra is very rusty as well.
∫ [x / 1 + x] dx
Can't do U-sub, don't think you can do by parts, can't do trig substitution, not sure about partial fractions
Divide everything by 'x'.
∫ [x / 1 + x] dx = ∫ [x (1 / x)/ 1(1 / x) + x(1 / x)] dx
∫ [1 / (1/x) + (1)] dx
Not sure where to go from here.