Thursday, 7 April 2016

calculus - Proving that int10frac1sqrtln(frac1x)dx converges?



How do you prove that 101ln(1x)dx converges? I've tried more or less everything I can think of and still can't get the answer. Any hints will be appreciated!


Answer



HINT



We have that



101ln(1x)dx=11x2lnxdx=211x2lnxdx+21x2lnxdx



and then refer to limit comparison test.


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