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Ryan888
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< Mentor Note -- thread moved to HH from the technical math forums, so no HH Template is shown >
1) ∫ dx/((x^(2))(x^(2)+4)^(1/2))2) I'm really stumped on this integral. I've tried several different methods of integration, but I kept getting stuck.3) The problem doesn't look like it needs trig substitution, and neither integration by parts, nor substitution seem to work, so I tried rationalizing the denominator to make it easier to decompose the fraction...
∫ ((x^(2)+4)^(1/2))/((x^(2))(x^(2)+4)) dx
then to decompose the fraction, I set it up as...
(Ax+B)/(x^(2)) + (Cx+D)/(x^(2)+4) = ((x^(2)+4)^(1/2))/((x^(2))(x^(2)+4))
(Ax+B)(x^(2)+4) + (Cx+D)(x^(2)) = ((x^(2)+4)^(1/2))
From here, however, I can't figure out the numerators of the two fractions. This is where I get stuck. Any help is greatly appreciated, thanks!
1) ∫ dx/((x^(2))(x^(2)+4)^(1/2))2) I'm really stumped on this integral. I've tried several different methods of integration, but I kept getting stuck.3) The problem doesn't look like it needs trig substitution, and neither integration by parts, nor substitution seem to work, so I tried rationalizing the denominator to make it easier to decompose the fraction...
∫ ((x^(2)+4)^(1/2))/((x^(2))(x^(2)+4)) dx
then to decompose the fraction, I set it up as...
(Ax+B)/(x^(2)) + (Cx+D)/(x^(2)+4) = ((x^(2)+4)^(1/2))/((x^(2))(x^(2)+4))
(Ax+B)(x^(2)+4) + (Cx+D)(x^(2)) = ((x^(2)+4)^(1/2))
From here, however, I can't figure out the numerators of the two fractions. This is where I get stuck. Any help is greatly appreciated, thanks!
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