12.4 Problem number 70

\[ \int \frac {1}{x^2 \left (a+b \log \left (c x^n\right )\right )} \, dx \]

Optimal antiderivative \[ \frac {{\mathrm e}^{\frac {a}{b n}} \left (c \,x^{n}\right )^{\frac {1}{n}} \expIntegral \left (\frac {-a -b \ln \left (c \,x^{n}\right )}{b n}\right )}{b n x} \]

command

int(1/x^2/(a+b*ln(c*x^n)),x,method=_RETURNVERBOSE)

Maple 2022.1 output

method result size
risch \(-\frac {c^{\frac {1}{n}} \left (x^{n}\right )^{\frac {1}{n}} {\mathrm e}^{\frac {-i b \pi \,\mathrm {csgn}\left (i c \right ) \mathrm {csgn}\left (i x^{n}\right ) \mathrm {csgn}\left (i c \,x^{n}\right )+i b \pi \,\mathrm {csgn}\left (i c \right ) \mathrm {csgn}\left (i c \,x^{n}\right )^{2}+i b \pi \,\mathrm {csgn}\left (i x^{n}\right ) \mathrm {csgn}\left (i c \,x^{n}\right )^{2}-i b \pi \mathrm {csgn}\left (i c \,x^{n}\right )^{3}+2 a}{2 b n}} \expIntegral \left (1, \ln \left (x \right )-\frac {i b \pi \,\mathrm {csgn}\left (i c \right ) \mathrm {csgn}\left (i x^{n}\right ) \mathrm {csgn}\left (i c \,x^{n}\right )-i b \pi \,\mathrm {csgn}\left (i c \right ) \mathrm {csgn}\left (i c \,x^{n}\right )^{2}-i b \pi \,\mathrm {csgn}\left (i x^{n}\right ) \mathrm {csgn}\left (i c \,x^{n}\right )^{2}+i b \pi \mathrm {csgn}\left (i c \,x^{n}\right )^{3}-2 b \ln \left (c \right )-2 b \left (\ln \left (x^{n}\right )-n \ln \left (x \right )\right )-2 a}{2 b n}\right )}{b n x}\) \(236\)

Maple 2021.1 output

\[ \int \frac {1}{\left (b \ln \left (c \,x^{n}\right )+a \right ) x^{2}}\, dx \]________________________________________________________________________________________