Optimal. Leaf size=144 \[ \frac {4 \left (1-a^2 x^2\right )}{35 a}+\frac {3 \left (1-a^2 x^2\right )^2}{70 a}+\frac {\left (1-a^2 x^2\right )^3}{42 a}+\frac {16}{35} x \tanh ^{-1}(a x)+\frac {8}{35} x \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)+\frac {6}{35} x \left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)+\frac {1}{7} x \left (1-a^2 x^2\right )^3 \tanh ^{-1}(a x)+\frac {8 \log \left (1-a^2 x^2\right )}{35 a} \]
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Rubi [A]
time = 0.05, antiderivative size = 144, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 3, integrand size = 17, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.176, Rules used = {6089, 6021,
266} \begin {gather*} \frac {\left (1-a^2 x^2\right )^3}{42 a}+\frac {3 \left (1-a^2 x^2\right )^2}{70 a}+\frac {4 \left (1-a^2 x^2\right )}{35 a}+\frac {8 \log \left (1-a^2 x^2\right )}{35 a}+\frac {1}{7} x \left (1-a^2 x^2\right )^3 \tanh ^{-1}(a x)+\frac {6}{35} x \left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)+\frac {8}{35} x \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)+\frac {16}{35} x \tanh ^{-1}(a x) \end {gather*}
Antiderivative was successfully verified.
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Rule 266
Rule 6021
Rule 6089
Rubi steps
\begin {align*} \int \left (1-a^2 x^2\right )^3 \tanh ^{-1}(a x) \, dx &=\frac {\left (1-a^2 x^2\right )^3}{42 a}+\frac {1}{7} x \left (1-a^2 x^2\right )^3 \tanh ^{-1}(a x)+\frac {6}{7} \int \left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x) \, dx\\ &=\frac {3 \left (1-a^2 x^2\right )^2}{70 a}+\frac {\left (1-a^2 x^2\right )^3}{42 a}+\frac {6}{35} x \left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)+\frac {1}{7} x \left (1-a^2 x^2\right )^3 \tanh ^{-1}(a x)+\frac {24}{35} \int \left (1-a^2 x^2\right ) \tanh ^{-1}(a x) \, dx\\ &=\frac {4 \left (1-a^2 x^2\right )}{35 a}+\frac {3 \left (1-a^2 x^2\right )^2}{70 a}+\frac {\left (1-a^2 x^2\right )^3}{42 a}+\frac {8}{35} x \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)+\frac {6}{35} x \left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)+\frac {1}{7} x \left (1-a^2 x^2\right )^3 \tanh ^{-1}(a x)+\frac {16}{35} \int \tanh ^{-1}(a x) \, dx\\ &=\frac {4 \left (1-a^2 x^2\right )}{35 a}+\frac {3 \left (1-a^2 x^2\right )^2}{70 a}+\frac {\left (1-a^2 x^2\right )^3}{42 a}+\frac {16}{35} x \tanh ^{-1}(a x)+\frac {8}{35} x \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)+\frac {6}{35} x \left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)+\frac {1}{7} x \left (1-a^2 x^2\right )^3 \tanh ^{-1}(a x)-\frac {1}{35} (16 a) \int \frac {x}{1-a^2 x^2} \, dx\\ &=\frac {4 \left (1-a^2 x^2\right )}{35 a}+\frac {3 \left (1-a^2 x^2\right )^2}{70 a}+\frac {\left (1-a^2 x^2\right )^3}{42 a}+\frac {16}{35} x \tanh ^{-1}(a x)+\frac {8}{35} x \left (1-a^2 x^2\right ) \tanh ^{-1}(a x)+\frac {6}{35} x \left (1-a^2 x^2\right )^2 \tanh ^{-1}(a x)+\frac {1}{7} x \left (1-a^2 x^2\right )^3 \tanh ^{-1}(a x)+\frac {8 \log \left (1-a^2 x^2\right )}{35 a}\\ \end {align*}
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Mathematica [A]
time = 0.02, size = 79, normalized size = 0.55 \begin {gather*} \frac {-57 a^2 x^2+24 a^4 x^4-5 a^6 x^6-6 a x \left (-35+35 a^2 x^2-21 a^4 x^4+5 a^6 x^6\right ) \tanh ^{-1}(a x)+48 \log \left (1-a^2 x^2\right )}{210 a} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.26, size = 89, normalized size = 0.62
method | result | size |
derivativedivides | \(\frac {-\frac {\arctanh \left (a x \right ) a^{7} x^{7}}{7}+\frac {3 \arctanh \left (a x \right ) a^{5} x^{5}}{5}-a^{3} x^{3} \arctanh \left (a x \right )+a x \arctanh \left (a x \right )-\frac {a^{6} x^{6}}{42}+\frac {4 a^{4} x^{4}}{35}-\frac {19 a^{2} x^{2}}{70}+\frac {8 \ln \left (a x -1\right )}{35}+\frac {8 \ln \left (a x +1\right )}{35}}{a}\) | \(89\) |
default | \(\frac {-\frac {\arctanh \left (a x \right ) a^{7} x^{7}}{7}+\frac {3 \arctanh \left (a x \right ) a^{5} x^{5}}{5}-a^{3} x^{3} \arctanh \left (a x \right )+a x \arctanh \left (a x \right )-\frac {a^{6} x^{6}}{42}+\frac {4 a^{4} x^{4}}{35}-\frac {19 a^{2} x^{2}}{70}+\frac {8 \ln \left (a x -1\right )}{35}+\frac {8 \ln \left (a x +1\right )}{35}}{a}\) | \(89\) |
risch | \(\left (-\frac {1}{14} a^{6} x^{7}+\frac {3}{10} a^{4} x^{5}-\frac {1}{2} a^{2} x^{3}+\frac {1}{2} x \right ) \ln \left (a x +1\right )+\frac {a^{6} x^{7} \ln \left (-a x +1\right )}{14}-\frac {a^{5} x^{6}}{42}-\frac {3 a^{4} x^{5} \ln \left (-a x +1\right )}{10}+\frac {4 a^{3} x^{4}}{35}+\frac {a^{2} x^{3} \ln \left (-a x +1\right )}{2}-\frac {19 a \,x^{2}}{70}-\frac {x \ln \left (-a x +1\right )}{2}+\frac {8 \ln \left (a^{2} x^{2}-1\right )}{35 a}\) | \(129\) |
meijerg | \(-\frac {\frac {2 a^{2} x^{2} \left (\ln \left (1-\sqrt {a^{2} x^{2}}\right )-\ln \left (1+\sqrt {a^{2} x^{2}}\right )\right )}{\sqrt {a^{2} x^{2}}}-2 \ln \left (-a^{2} x^{2}+1\right )}{4 a}-\frac {\frac {a^{2} x^{2} \left (4 a^{4} x^{4}+6 a^{2} x^{2}+12\right )}{42}-\frac {2 a^{8} x^{8} \left (\ln \left (1-\sqrt {a^{2} x^{2}}\right )-\ln \left (1+\sqrt {a^{2} x^{2}}\right )\right )}{7 \sqrt {a^{2} x^{2}}}+\frac {2 \ln \left (-a^{2} x^{2}+1\right )}{7}}{4 a}-\frac {3 \left (-\frac {a^{2} x^{2} \left (3 a^{2} x^{2}+6\right )}{15}+\frac {2 a^{6} x^{6} \left (\ln \left (1-\sqrt {a^{2} x^{2}}\right )-\ln \left (1+\sqrt {a^{2} x^{2}}\right )\right )}{5 \sqrt {a^{2} x^{2}}}-\frac {2 \ln \left (-a^{2} x^{2}+1\right )}{5}\right )}{4 a}-\frac {3 \left (\frac {2 a^{2} x^{2}}{3}-\frac {2 a^{4} x^{4} \left (\ln \left (1-\sqrt {a^{2} x^{2}}\right )-\ln \left (1+\sqrt {a^{2} x^{2}}\right )\right )}{3 \sqrt {a^{2} x^{2}}}+\frac {2 \ln \left (-a^{2} x^{2}+1\right )}{3}\right )}{4 a}\) | \(314\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.25, size = 82, normalized size = 0.57 \begin {gather*} -\frac {1}{210} \, {\left (5 \, a^{4} x^{6} - 24 \, a^{2} x^{4} + 57 \, x^{2} - \frac {48 \, \log \left (a x + 1\right )}{a^{2}} - \frac {48 \, \log \left (a x - 1\right )}{a^{2}}\right )} a - \frac {1}{35} \, {\left (5 \, a^{6} x^{7} - 21 \, a^{4} x^{5} + 35 \, a^{2} x^{3} - 35 \, x\right )} \operatorname {artanh}\left (a x\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.38, size = 88, normalized size = 0.61 \begin {gather*} -\frac {5 \, a^{6} x^{6} - 24 \, a^{4} x^{4} + 57 \, a^{2} x^{2} + 3 \, {\left (5 \, a^{7} x^{7} - 21 \, a^{5} x^{5} + 35 \, a^{3} x^{3} - 35 \, a x\right )} \log \left (-\frac {a x + 1}{a x - 1}\right ) - 48 \, \log \left (a^{2} x^{2} - 1\right )}{210 \, a} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.81, size = 97, normalized size = 0.67 \begin {gather*} \begin {cases} - \frac {a^{6} x^{7} \operatorname {atanh}{\left (a x \right )}}{7} - \frac {a^{5} x^{6}}{42} + \frac {3 a^{4} x^{5} \operatorname {atanh}{\left (a x \right )}}{5} + \frac {4 a^{3} x^{4}}{35} - a^{2} x^{3} \operatorname {atanh}{\left (a x \right )} - \frac {19 a x^{2}}{70} + x \operatorname {atanh}{\left (a x \right )} + \frac {16 \log {\left (x - \frac {1}{a} \right )}}{35 a} + \frac {16 \operatorname {atanh}{\left (a x \right )}}{35 a} & \text {for}\: a \neq 0 \\0 & \text {otherwise} \end {cases} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 303 vs.
\(2 (122) = 244\).
time = 0.41, size = 303, normalized size = 2.10 \begin {gather*} \frac {8}{105} \, a {\left (\frac {6 \, \log \left (\frac {{\left | -a x - 1 \right |}}{{\left | a x - 1 \right |}}\right )}{a^{2}} - \frac {6 \, \log \left ({\left | -\frac {a x + 1}{a x - 1} + 1 \right |}\right )}{a^{2}} - \frac {\frac {6 \, {\left (a x + 1\right )}^{5}}{{\left (a x - 1\right )}^{5}} - \frac {33 \, {\left (a x + 1\right )}^{4}}{{\left (a x - 1\right )}^{4}} + \frac {74 \, {\left (a x + 1\right )}^{3}}{{\left (a x - 1\right )}^{3}} - \frac {33 \, {\left (a x + 1\right )}^{2}}{{\left (a x - 1\right )}^{2}} + \frac {6 \, {\left (a x + 1\right )}}{a x - 1}}{a^{2} {\left (\frac {a x + 1}{a x - 1} - 1\right )}^{6}} - \frac {6 \, {\left (\frac {35 \, {\left (a x + 1\right )}^{3}}{{\left (a x - 1\right )}^{3}} - \frac {21 \, {\left (a x + 1\right )}^{2}}{{\left (a x - 1\right )}^{2}} + \frac {7 \, {\left (a x + 1\right )}}{a x - 1} - 1\right )} \log \left (-\frac {\frac {a {\left (\frac {a x + 1}{a x - 1} + 1\right )}}{\frac {{\left (a x + 1\right )} a}{a x - 1} - a} + 1}{\frac {a {\left (\frac {a x + 1}{a x - 1} + 1\right )}}{\frac {{\left (a x + 1\right )} a}{a x - 1} - a} - 1}\right )}{a^{2} {\left (\frac {a x + 1}{a x - 1} - 1\right )}^{7}}\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.94, size = 80, normalized size = 0.56 \begin {gather*} x\,\mathrm {atanh}\left (a\,x\right )-\frac {19\,a\,x^2}{70}+\frac {8\,\ln \left (a^2\,x^2-1\right )}{35\,a}+\frac {4\,a^3\,x^4}{35}-\frac {a^5\,x^6}{42}-a^2\,x^3\,\mathrm {atanh}\left (a\,x\right )+\frac {3\,a^4\,x^5\,\mathrm {atanh}\left (a\,x\right )}{5}-\frac {a^6\,x^7\,\mathrm {atanh}\left (a\,x\right )}{7} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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