I can't seem to get the answer to 2xy^3/(x^2y^2+1)
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Sorry it is dy I tried a substitution and it got very messy, ended up with y= sqrt( u-1/x). Hence I think I have taken the completely wrong route
Use Partial fractions:
Or you may make the substitution , so that Therefore and Therefore the integrand now becomes, This can be evaluated using standard forms.
Thank you I can integrate y/x^2 dy to get y^2/2x^2 Do I tackle the second integral by substitution? I got du=2x^4y dy and my result for y again seems wrong as I got square root of -1/x^2 which you can't have
for the second one, use substution. and finish..
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