如题:∫(x-1)/(x^2+1)dx
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如题:∫(x-1)/(x^2+1)dx如题:∫(x-1)/(x^2+1)dx如题:∫(x-1)/(x^2+1)dx∫(x-1)/(x^2+1)dx=∫x/(x^2+1)dx-∫1/(x^2+1)dx=
如题:∫(x-1)/(x^2+1)dx
如题:∫(x-1)/(x^2+1)dx
如题:∫(x-1)/(x^2+1)dx
∫(x-1)/(x^2+1)dx
=∫x/(x^2+1)dx-∫1/(x^2+1)dx
=1/2∫1/(x^2+1)d(x^2+1)-arctanx
=1/2ln(x^2+1)-arctanx+C
如题:∫(x-1)/(x^2+1)dx
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