the answer to [tex]\int\frac{1}{x}(dx)[/tex] is lnx +c. but if you do it with integration by parts, you end up with(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\int\frac{1}{x}(dx)[/tex] = 1 + [tex]\int\frac{1}{x}(dx)[/tex]

which comes to 0=1. why does this happen?

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# Integration by Parts, 1/x dillema

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