That is because there is supposed to be a du in the numerator. Fixed the original post. Tried something new with the latexing and it just did not work.
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I'm not certain if this answer is correct, but it's the same answer from Mathematica.
Anf what about Bondarenko? Is he good, bad or just loony?
I think he is a combination of all three.
]]>This is maple 11's answer to the integral of [(x^4 + 1)^(1/2)]/x^3 (after a little simplification of the
integrand).
Looks like a combo of (x^4 + 1)'s 3/2 power divided by x^2, 1/2 power times x^2 and an arcsinh(x^2). So it is probably amenable to various substitution techniques but probably several of them. Could be quite tricky!
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