Integrand size = 18, antiderivative size = 338 \[ \int \frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{x^8} \, dx=-\frac {8 b^2 p^2}{105 a^2 x^3}+\frac {64 b^3 p^2}{105 a^3 x}+\frac {184 b^{7/2} p^2 \arctan \left (\frac {\sqrt {b} x}{\sqrt {a}}\right )}{105 a^{7/2}}-\frac {4 i b^{7/2} p^2 \arctan \left (\frac {\sqrt {b} x}{\sqrt {a}}\right )^2}{7 a^{7/2}}-\frac {8 b^{7/2} p^2 \arctan \left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (\frac {2 \sqrt {a}}{\sqrt {a}+i \sqrt {b} x}\right )}{7 a^{7/2}}-\frac {4 b p \log \left (c \left (a+b x^2\right )^p\right )}{35 a x^5}+\frac {4 b^2 p \log \left (c \left (a+b x^2\right )^p\right )}{21 a^2 x^3}-\frac {4 b^3 p \log \left (c \left (a+b x^2\right )^p\right )}{7 a^3 x}-\frac {4 b^{7/2} p \arctan \left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (c \left (a+b x^2\right )^p\right )}{7 a^{7/2}}-\frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{7 x^7}-\frac {4 i b^{7/2} p^2 \operatorname {PolyLog}\left (2,1-\frac {2 \sqrt {a}}{\sqrt {a}+i \sqrt {b} x}\right )}{7 a^{7/2}} \]
[Out]
Time = 0.25 (sec) , antiderivative size = 338, normalized size of antiderivative = 1.00, number of steps used = 18, number of rules used = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.611, Rules used = {2507, 2526, 2505, 331, 211, 2520, 12, 5040, 4964, 2449, 2352} \[ \int \frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{x^8} \, dx=-\frac {4 b^{7/2} p \arctan \left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (c \left (a+b x^2\right )^p\right )}{7 a^{7/2}}-\frac {4 i b^{7/2} p^2 \arctan \left (\frac {\sqrt {b} x}{\sqrt {a}}\right )^2}{7 a^{7/2}}+\frac {184 b^{7/2} p^2 \arctan \left (\frac {\sqrt {b} x}{\sqrt {a}}\right )}{105 a^{7/2}}-\frac {8 b^{7/2} p^2 \arctan \left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (\frac {2 \sqrt {a}}{\sqrt {a}+i \sqrt {b} x}\right )}{7 a^{7/2}}-\frac {4 i b^{7/2} p^2 \operatorname {PolyLog}\left (2,1-\frac {2 \sqrt {a}}{i \sqrt {b} x+\sqrt {a}}\right )}{7 a^{7/2}}-\frac {4 b^3 p \log \left (c \left (a+b x^2\right )^p\right )}{7 a^3 x}+\frac {64 b^3 p^2}{105 a^3 x}+\frac {4 b^2 p \log \left (c \left (a+b x^2\right )^p\right )}{21 a^2 x^3}-\frac {8 b^2 p^2}{105 a^2 x^3}-\frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{7 x^7}-\frac {4 b p \log \left (c \left (a+b x^2\right )^p\right )}{35 a x^5} \]
[In]
[Out]
Rule 12
Rule 211
Rule 331
Rule 2352
Rule 2449
Rule 2505
Rule 2507
Rule 2520
Rule 2526
Rule 4964
Rule 5040
Rubi steps \begin{align*} \text {integral}& = -\frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{7 x^7}+\frac {1}{7} (4 b p) \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{x^6 \left (a+b x^2\right )} \, dx \\ & = -\frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{7 x^7}+\frac {1}{7} (4 b p) \int \left (\frac {\log \left (c \left (a+b x^2\right )^p\right )}{a x^6}-\frac {b \log \left (c \left (a+b x^2\right )^p\right )}{a^2 x^4}+\frac {b^2 \log \left (c \left (a+b x^2\right )^p\right )}{a^3 x^2}-\frac {b^3 \log \left (c \left (a+b x^2\right )^p\right )}{a^3 \left (a+b x^2\right )}\right ) \, dx \\ & = -\frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{7 x^7}+\frac {(4 b p) \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{x^6} \, dx}{7 a}-\frac {\left (4 b^2 p\right ) \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{x^4} \, dx}{7 a^2}+\frac {\left (4 b^3 p\right ) \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{x^2} \, dx}{7 a^3}-\frac {\left (4 b^4 p\right ) \int \frac {\log \left (c \left (a+b x^2\right )^p\right )}{a+b x^2} \, dx}{7 a^3} \\ & = -\frac {4 b p \log \left (c \left (a+b x^2\right )^p\right )}{35 a x^5}+\frac {4 b^2 p \log \left (c \left (a+b x^2\right )^p\right )}{21 a^2 x^3}-\frac {4 b^3 p \log \left (c \left (a+b x^2\right )^p\right )}{7 a^3 x}-\frac {4 b^{7/2} p \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (c \left (a+b x^2\right )^p\right )}{7 a^{7/2}}-\frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{7 x^7}+\frac {\left (8 b^2 p^2\right ) \int \frac {1}{x^4 \left (a+b x^2\right )} \, dx}{35 a}-\frac {\left (8 b^3 p^2\right ) \int \frac {1}{x^2 \left (a+b x^2\right )} \, dx}{21 a^2}+\frac {\left (8 b^4 p^2\right ) \int \frac {1}{a+b x^2} \, dx}{7 a^3}+\frac {\left (8 b^5 p^2\right ) \int \frac {x \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )}{\sqrt {a} \sqrt {b} \left (a+b x^2\right )} \, dx}{7 a^3} \\ & = -\frac {8 b^2 p^2}{105 a^2 x^3}+\frac {8 b^3 p^2}{21 a^3 x}+\frac {8 b^{7/2} p^2 \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )}{7 a^{7/2}}-\frac {4 b p \log \left (c \left (a+b x^2\right )^p\right )}{35 a x^5}+\frac {4 b^2 p \log \left (c \left (a+b x^2\right )^p\right )}{21 a^2 x^3}-\frac {4 b^3 p \log \left (c \left (a+b x^2\right )^p\right )}{7 a^3 x}-\frac {4 b^{7/2} p \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (c \left (a+b x^2\right )^p\right )}{7 a^{7/2}}-\frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{7 x^7}-\frac {\left (8 b^3 p^2\right ) \int \frac {1}{x^2 \left (a+b x^2\right )} \, dx}{35 a^2}+\frac {\left (8 b^4 p^2\right ) \int \frac {1}{a+b x^2} \, dx}{21 a^3}+\frac {\left (8 b^{9/2} p^2\right ) \int \frac {x \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )}{a+b x^2} \, dx}{7 a^{7/2}} \\ & = -\frac {8 b^2 p^2}{105 a^2 x^3}+\frac {64 b^3 p^2}{105 a^3 x}+\frac {32 b^{7/2} p^2 \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )}{21 a^{7/2}}-\frac {4 i b^{7/2} p^2 \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )^2}{7 a^{7/2}}-\frac {4 b p \log \left (c \left (a+b x^2\right )^p\right )}{35 a x^5}+\frac {4 b^2 p \log \left (c \left (a+b x^2\right )^p\right )}{21 a^2 x^3}-\frac {4 b^3 p \log \left (c \left (a+b x^2\right )^p\right )}{7 a^3 x}-\frac {4 b^{7/2} p \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (c \left (a+b x^2\right )^p\right )}{7 a^{7/2}}-\frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{7 x^7}-\frac {\left (8 b^4 p^2\right ) \int \frac {\tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )}{i-\frac {\sqrt {b} x}{\sqrt {a}}} \, dx}{7 a^4}+\frac {\left (8 b^4 p^2\right ) \int \frac {1}{a+b x^2} \, dx}{35 a^3} \\ & = -\frac {8 b^2 p^2}{105 a^2 x^3}+\frac {64 b^3 p^2}{105 a^3 x}+\frac {184 b^{7/2} p^2 \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )}{105 a^{7/2}}-\frac {4 i b^{7/2} p^2 \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )^2}{7 a^{7/2}}-\frac {8 b^{7/2} p^2 \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (\frac {2 \sqrt {a}}{\sqrt {a}+i \sqrt {b} x}\right )}{7 a^{7/2}}-\frac {4 b p \log \left (c \left (a+b x^2\right )^p\right )}{35 a x^5}+\frac {4 b^2 p \log \left (c \left (a+b x^2\right )^p\right )}{21 a^2 x^3}-\frac {4 b^3 p \log \left (c \left (a+b x^2\right )^p\right )}{7 a^3 x}-\frac {4 b^{7/2} p \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (c \left (a+b x^2\right )^p\right )}{7 a^{7/2}}-\frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{7 x^7}+\frac {\left (8 b^4 p^2\right ) \int \frac {\log \left (\frac {2}{1+\frac {i \sqrt {b} x}{\sqrt {a}}}\right )}{1+\frac {b x^2}{a}} \, dx}{7 a^4} \\ & = -\frac {8 b^2 p^2}{105 a^2 x^3}+\frac {64 b^3 p^2}{105 a^3 x}+\frac {184 b^{7/2} p^2 \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )}{105 a^{7/2}}-\frac {4 i b^{7/2} p^2 \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )^2}{7 a^{7/2}}-\frac {8 b^{7/2} p^2 \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (\frac {2 \sqrt {a}}{\sqrt {a}+i \sqrt {b} x}\right )}{7 a^{7/2}}-\frac {4 b p \log \left (c \left (a+b x^2\right )^p\right )}{35 a x^5}+\frac {4 b^2 p \log \left (c \left (a+b x^2\right )^p\right )}{21 a^2 x^3}-\frac {4 b^3 p \log \left (c \left (a+b x^2\right )^p\right )}{7 a^3 x}-\frac {4 b^{7/2} p \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (c \left (a+b x^2\right )^p\right )}{7 a^{7/2}}-\frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{7 x^7}-\frac {\left (8 i b^{7/2} p^2\right ) \text {Subst}\left (\int \frac {\log (2 x)}{1-2 x} \, dx,x,\frac {1}{1+\frac {i \sqrt {b} x}{\sqrt {a}}}\right )}{7 a^{7/2}} \\ & = -\frac {8 b^2 p^2}{105 a^2 x^3}+\frac {64 b^3 p^2}{105 a^3 x}+\frac {184 b^{7/2} p^2 \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )}{105 a^{7/2}}-\frac {4 i b^{7/2} p^2 \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right )^2}{7 a^{7/2}}-\frac {8 b^{7/2} p^2 \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (\frac {2 \sqrt {a}}{\sqrt {a}+i \sqrt {b} x}\right )}{7 a^{7/2}}-\frac {4 b p \log \left (c \left (a+b x^2\right )^p\right )}{35 a x^5}+\frac {4 b^2 p \log \left (c \left (a+b x^2\right )^p\right )}{21 a^2 x^3}-\frac {4 b^3 p \log \left (c \left (a+b x^2\right )^p\right )}{7 a^3 x}-\frac {4 b^{7/2} p \tan ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (c \left (a+b x^2\right )^p\right )}{7 a^{7/2}}-\frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{7 x^7}-\frac {4 i b^{7/2} p^2 \text {Li}_2\left (1-\frac {2 \sqrt {a}}{\sqrt {a}+i \sqrt {b} x}\right )}{7 a^{7/2}} \\ \end{align*}
Result contains higher order function than in optimal. Order 5 vs. order 4 in optimal.
Time = 0.15 (sec) , antiderivative size = 353, normalized size of antiderivative = 1.04 \[ \int \frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{x^8} \, dx=-\frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{7 x^7}+\frac {4}{7} b p \left (\frac {2 b^{5/2} p \arctan \left (\frac {\sqrt {b} x}{\sqrt {a}}\right )}{a^{7/2}}-\frac {2 b p \operatorname {Hypergeometric2F1}\left (-\frac {3}{2},1,-\frac {1}{2},-\frac {b x^2}{a}\right )}{15 a^2 x^3}+\frac {2 b^2 p \operatorname {Hypergeometric2F1}\left (-\frac {1}{2},1,\frac {1}{2},-\frac {b x^2}{a}\right )}{3 a^3 x}-\frac {\log \left (c \left (a+b x^2\right )^p\right )}{5 a x^5}+\frac {b \log \left (c \left (a+b x^2\right )^p\right )}{3 a^2 x^3}-\frac {b^2 \log \left (c \left (a+b x^2\right )^p\right )}{a^3 x}-\frac {b^{5/2} \arctan \left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (c \left (a+b x^2\right )^p\right )}{a^{7/2}}-\frac {p \left (i b^{5/2} \arctan \left (\frac {\sqrt {b} x}{\sqrt {a}}\right )^2+2 b^{5/2} \arctan \left (\frac {\sqrt {b} x}{\sqrt {a}}\right ) \log \left (\frac {2 i \sqrt {a}}{i \sqrt {a}-\sqrt {b} x}\right )+i b^{5/2} \operatorname {PolyLog}\left (2,-\frac {i \sqrt {a}+\sqrt {b} x}{i \sqrt {a}-\sqrt {b} x}\right )\right )}{a^{7/2}}\right ) \]
[In]
[Out]
Result contains higher order function than in optimal. Order 9 vs. order 4.
Time = 1.92 (sec) , antiderivative size = 619, normalized size of antiderivative = 1.83
method | result | size |
risch | \(-\frac {{\ln \left (\left (b \,x^{2}+a \right )^{p}\right )}^{2}}{7 x^{7}}-\frac {4 p b \ln \left (\left (b \,x^{2}+a \right )^{p}\right )}{35 a \,x^{5}}-\frac {4 p \,b^{3} \ln \left (\left (b \,x^{2}+a \right )^{p}\right )}{7 a^{3} x}+\frac {4 p \,b^{2} \ln \left (\left (b \,x^{2}+a \right )^{p}\right )}{21 a^{2} x^{3}}+\frac {4 p^{2} b^{4} \arctan \left (\frac {b x}{\sqrt {a b}}\right ) \ln \left (b \,x^{2}+a \right )}{7 a^{3} \sqrt {a b}}-\frac {4 p \,b^{4} \arctan \left (\frac {b x}{\sqrt {a b}}\right ) \ln \left (\left (b \,x^{2}+a \right )^{p}\right )}{7 a^{3} \sqrt {a b}}+\frac {64 b^{3} p^{2}}{105 a^{3} x}+\frac {184 p^{2} b^{4} \arctan \left (\frac {b x}{\sqrt {a b}}\right )}{105 a^{3} \sqrt {a b}}-\frac {8 b^{2} p^{2}}{105 a^{2} x^{3}}+\frac {4 p^{2} b \left (\munderset {\underline {\hspace {1.25 ex}}\alpha =\operatorname {RootOf}\left (b \,\textit {\_Z}^{2}+a \right )}{\sum }\left (-\frac {\left (\ln \left (x -\underline {\hspace {1.25 ex}}\alpha \right ) \ln \left (b \,x^{2}+a \right )-2 b \left (\frac {\ln \left (x -\underline {\hspace {1.25 ex}}\alpha \right )^{2}}{4 \underline {\hspace {1.25 ex}}\alpha b}+\frac {\underline {\hspace {1.25 ex}}\alpha \ln \left (x -\underline {\hspace {1.25 ex}}\alpha \right ) \ln \left (\frac {x +\underline {\hspace {1.25 ex}}\alpha }{2 \underline {\hspace {1.25 ex}}\alpha }\right )}{2 a}+\frac {\underline {\hspace {1.25 ex}}\alpha \operatorname {dilog}\left (\frac {x +\underline {\hspace {1.25 ex}}\alpha }{2 \underline {\hspace {1.25 ex}}\alpha }\right )}{2 a}\right )\right ) b^{2}}{2 a^{3} \underline {\hspace {1.25 ex}}\alpha }\right )\right )}{7}+\left (i \pi \,\operatorname {csgn}\left (i \left (b \,x^{2}+a \right )^{p}\right ) {\operatorname {csgn}\left (i c \left (b \,x^{2}+a \right )^{p}\right )}^{2}-i \pi \,\operatorname {csgn}\left (i \left (b \,x^{2}+a \right )^{p}\right ) \operatorname {csgn}\left (i c \left (b \,x^{2}+a \right )^{p}\right ) \operatorname {csgn}\left (i c \right )-i \pi {\operatorname {csgn}\left (i c \left (b \,x^{2}+a \right )^{p}\right )}^{3}+i \pi {\operatorname {csgn}\left (i c \left (b \,x^{2}+a \right )^{p}\right )}^{2} \operatorname {csgn}\left (i c \right )+2 \ln \left (c \right )\right ) \left (-\frac {\ln \left (\left (b \,x^{2}+a \right )^{p}\right )}{7 x^{7}}+\frac {2 p b \left (-\frac {1}{5 a \,x^{5}}-\frac {b^{2}}{a^{3} x}+\frac {b}{3 a^{2} x^{3}}-\frac {b^{3} \arctan \left (\frac {b x}{\sqrt {a b}}\right )}{a^{3} \sqrt {a b}}\right )}{7}\right )-\frac {{\left (i \pi \,\operatorname {csgn}\left (i \left (b \,x^{2}+a \right )^{p}\right ) {\operatorname {csgn}\left (i c \left (b \,x^{2}+a \right )^{p}\right )}^{2}-i \pi \,\operatorname {csgn}\left (i \left (b \,x^{2}+a \right )^{p}\right ) \operatorname {csgn}\left (i c \left (b \,x^{2}+a \right )^{p}\right ) \operatorname {csgn}\left (i c \right )-i \pi {\operatorname {csgn}\left (i c \left (b \,x^{2}+a \right )^{p}\right )}^{3}+i \pi {\operatorname {csgn}\left (i c \left (b \,x^{2}+a \right )^{p}\right )}^{2} \operatorname {csgn}\left (i c \right )+2 \ln \left (c \right )\right )}^{2}}{28 x^{7}}\) | \(619\) |
[In]
[Out]
\[ \int \frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{x^8} \, dx=\int { \frac {\log \left ({\left (b x^{2} + a\right )}^{p} c\right )^{2}}{x^{8}} \,d x } \]
[In]
[Out]
\[ \int \frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{x^8} \, dx=\int \frac {\log {\left (c \left (a + b x^{2}\right )^{p} \right )}^{2}}{x^{8}}\, dx \]
[In]
[Out]
\[ \int \frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{x^8} \, dx=\int { \frac {\log \left ({\left (b x^{2} + a\right )}^{p} c\right )^{2}}{x^{8}} \,d x } \]
[In]
[Out]
\[ \int \frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{x^8} \, dx=\int { \frac {\log \left ({\left (b x^{2} + a\right )}^{p} c\right )^{2}}{x^{8}} \,d x } \]
[In]
[Out]
Timed out. \[ \int \frac {\log ^2\left (c \left (a+b x^2\right )^p\right )}{x^8} \, dx=\int \frac {{\ln \left (c\,{\left (b\,x^2+a\right )}^p\right )}^2}{x^8} \,d x \]
[In]
[Out]