Optimal. Leaf size=101 \[ \frac {1}{8} c^4 (8-13 a x) \sqrt {1-a^2 x^2}-c^4 \left (1-a^2 x^2\right )^{3/2}+\frac {1}{4} a c^4 x \left (1-a^2 x^2\right )^{3/2}-\frac {13}{8} c^4 \text {ArcSin}(a x)-c^4 \tanh ^{-1}\left (\sqrt {1-a^2 x^2}\right ) \]
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Rubi [A]
time = 0.17, antiderivative size = 101, normalized size of antiderivative = 1.00, number of steps
used = 9, number of rules used = 8, integrand size = 19, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.421, Rules used = {6263, 1823,
829, 858, 222, 272, 65, 214} \begin {gather*} \frac {1}{4} a c^4 x \left (1-a^2 x^2\right )^{3/2}-c^4 \left (1-a^2 x^2\right )^{3/2}+\frac {1}{8} c^4 (8-13 a x) \sqrt {1-a^2 x^2}-c^4 \tanh ^{-1}\left (\sqrt {1-a^2 x^2}\right )-\frac {13}{8} c^4 \text {ArcSin}(a x) \end {gather*}
Antiderivative was successfully verified.
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Rule 65
Rule 214
Rule 222
Rule 272
Rule 829
Rule 858
Rule 1823
Rule 6263
Rubi steps
\begin {align*} \int \frac {e^{\tanh ^{-1}(a x)} (c-a c x)^4}{x} \, dx &=c \int \frac {(c-a c x)^3 \sqrt {1-a^2 x^2}}{x} \, dx\\ &=\frac {1}{4} a c^4 x \left (1-a^2 x^2\right )^{3/2}-\frac {c \int \frac {\sqrt {1-a^2 x^2} \left (-4 a^2 c^3+13 a^3 c^3 x-12 a^4 c^3 x^2\right )}{x} \, dx}{4 a^2}\\ &=-c^4 \left (1-a^2 x^2\right )^{3/2}+\frac {1}{4} a c^4 x \left (1-a^2 x^2\right )^{3/2}+\frac {c \int \frac {\left (12 a^4 c^3-39 a^5 c^3 x\right ) \sqrt {1-a^2 x^2}}{x} \, dx}{12 a^4}\\ &=\frac {1}{8} c^4 (8-13 a x) \sqrt {1-a^2 x^2}-c^4 \left (1-a^2 x^2\right )^{3/2}+\frac {1}{4} a c^4 x \left (1-a^2 x^2\right )^{3/2}-\frac {c \int \frac {-24 a^6 c^3+39 a^7 c^3 x}{x \sqrt {1-a^2 x^2}} \, dx}{24 a^6}\\ &=\frac {1}{8} c^4 (8-13 a x) \sqrt {1-a^2 x^2}-c^4 \left (1-a^2 x^2\right )^{3/2}+\frac {1}{4} a c^4 x \left (1-a^2 x^2\right )^{3/2}+c^4 \int \frac {1}{x \sqrt {1-a^2 x^2}} \, dx-\frac {1}{8} \left (13 a c^4\right ) \int \frac {1}{\sqrt {1-a^2 x^2}} \, dx\\ &=\frac {1}{8} c^4 (8-13 a x) \sqrt {1-a^2 x^2}-c^4 \left (1-a^2 x^2\right )^{3/2}+\frac {1}{4} a c^4 x \left (1-a^2 x^2\right )^{3/2}-\frac {13}{8} c^4 \sin ^{-1}(a x)+\frac {1}{2} c^4 \text {Subst}\left (\int \frac {1}{x \sqrt {1-a^2 x}} \, dx,x,x^2\right )\\ &=\frac {1}{8} c^4 (8-13 a x) \sqrt {1-a^2 x^2}-c^4 \left (1-a^2 x^2\right )^{3/2}+\frac {1}{4} a c^4 x \left (1-a^2 x^2\right )^{3/2}-\frac {13}{8} c^4 \sin ^{-1}(a x)-\frac {c^4 \text {Subst}\left (\int \frac {1}{\frac {1}{a^2}-\frac {x^2}{a^2}} \, dx,x,\sqrt {1-a^2 x^2}\right )}{a^2}\\ &=\frac {1}{8} c^4 (8-13 a x) \sqrt {1-a^2 x^2}-c^4 \left (1-a^2 x^2\right )^{3/2}+\frac {1}{4} a c^4 x \left (1-a^2 x^2\right )^{3/2}-\frac {13}{8} c^4 \sin ^{-1}(a x)-c^4 \tanh ^{-1}\left (\sqrt {1-a^2 x^2}\right )\\ \end {align*}
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Mathematica [A]
time = 0.06, size = 142, normalized size = 1.41 \begin {gather*} \frac {c^4 \left (-11 a x+8 a^2 x^2+9 a^3 x^3-8 a^4 x^4+2 a^5 x^5+4 \sqrt {1-a^2 x^2} \text {ArcSin}(a x)+34 \sqrt {1-a^2 x^2} \text {ArcSin}\left (\frac {\sqrt {1-a x}}{\sqrt {2}}\right )-8 \sqrt {1-a^2 x^2} \tanh ^{-1}\left (\sqrt {1-a^2 x^2}\right )\right )}{8 \sqrt {1-a^2 x^2}} \end {gather*}
Warning: Unable to verify antiderivative.
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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(238\) vs.
\(2(87)=174\).
time = 0.84, size = 239, normalized size = 2.37
method | result | size |
default | \(c^{4} \left (a^{5} \left (-\frac {x^{3} \sqrt {-a^{2} x^{2}+1}}{4 a^{2}}+\frac {-\frac {3 x \sqrt {-a^{2} x^{2}+1}}{8 a^{2}}+\frac {3 \arctan \left (\frac {\sqrt {a^{2}}\, x}{\sqrt {-a^{2} x^{2}+1}}\right )}{8 a^{2} \sqrt {a^{2}}}}{a^{2}}\right )-3 a^{4} \left (-\frac {x^{2} \sqrt {-a^{2} x^{2}+1}}{3 a^{2}}-\frac {2 \sqrt {-a^{2} x^{2}+1}}{3 a^{4}}\right )+2 a^{3} \left (-\frac {x \sqrt {-a^{2} x^{2}+1}}{2 a^{2}}+\frac {\arctan \left (\frac {\sqrt {a^{2}}\, x}{\sqrt {-a^{2} x^{2}+1}}\right )}{2 a^{2} \sqrt {a^{2}}}\right )-2 \sqrt {-a^{2} x^{2}+1}-\frac {3 a \arctan \left (\frac {\sqrt {a^{2}}\, x}{\sqrt {-a^{2} x^{2}+1}}\right )}{\sqrt {a^{2}}}-\arctanh \left (\frac {1}{\sqrt {-a^{2} x^{2}+1}}\right )\right )\) | \(239\) |
meijerg | \(\frac {a \,c^{4} \left (-\frac {\sqrt {\pi }\, x \left (-a^{2}\right )^{\frac {5}{2}} \left (10 a^{2} x^{2}+15\right ) \sqrt {-a^{2} x^{2}+1}}{20 a^{4}}+\frac {3 \sqrt {\pi }\, \left (-a^{2}\right )^{\frac {5}{2}} \arcsin \left (a x \right )}{4 a^{5}}\right )}{2 \sqrt {\pi }\, \sqrt {-a^{2}}}-\frac {3 c^{4} \left (\frac {4 \sqrt {\pi }}{3}-\frac {\sqrt {\pi }\, \left (4 a^{2} x^{2}+8\right ) \sqrt {-a^{2} x^{2}+1}}{6}\right )}{2 \sqrt {\pi }}-\frac {a \,c^{4} \left (-\frac {\sqrt {\pi }\, x \left (-a^{2}\right )^{\frac {3}{2}} \sqrt {-a^{2} x^{2}+1}}{a^{2}}+\frac {\sqrt {\pi }\, \left (-a^{2}\right )^{\frac {3}{2}} \arcsin \left (a x \right )}{a^{3}}\right )}{\sqrt {\pi }\, \sqrt {-a^{2}}}-\frac {c^{4} \left (-2 \sqrt {\pi }+2 \sqrt {\pi }\, \sqrt {-a^{2} x^{2}+1}\right )}{\sqrt {\pi }}-3 c^{4} \arcsin \left (a x \right )+\frac {c^{4} \left (-2 \sqrt {\pi }\, \ln \left (\frac {1}{2}+\frac {\sqrt {-a^{2} x^{2}+1}}{2}\right )+\left (-2 \ln \left (2\right )+2 \ln \left (x \right )+\ln \left (-a^{2}\right )\right ) \sqrt {\pi }\right )}{2 \sqrt {\pi }}\) | \(270\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.46, size = 105, normalized size = 1.04 \begin {gather*} -\frac {1}{4} \, \sqrt {-a^{2} x^{2} + 1} a^{3} c^{4} x^{3} + \sqrt {-a^{2} x^{2} + 1} a^{2} c^{4} x^{2} - \frac {11}{8} \, \sqrt {-a^{2} x^{2} + 1} a c^{4} x - \frac {13}{8} \, c^{4} \arcsin \left (a x\right ) - c^{4} \log \left (\frac {2 \, \sqrt {-a^{2} x^{2} + 1}}{{\left | x \right |}} + \frac {2}{{\left | x \right |}}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.38, size = 95, normalized size = 0.94 \begin {gather*} \frac {13}{4} \, c^{4} \arctan \left (\frac {\sqrt {-a^{2} x^{2} + 1} - 1}{a x}\right ) + c^{4} \log \left (\frac {\sqrt {-a^{2} x^{2} + 1} - 1}{x}\right ) - \frac {1}{8} \, {\left (2 \, a^{3} c^{4} x^{3} - 8 \, a^{2} c^{4} x^{2} + 11 \, a c^{4} x\right )} \sqrt {-a^{2} x^{2} + 1} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] Result contains complex when optimal does not.
time = 13.18, size = 420, normalized size = 4.16 \begin {gather*} a^{5} c^{4} \left (\begin {cases} - \frac {i x^{5}}{4 \sqrt {a^{2} x^{2} - 1}} - \frac {i x^{3}}{8 a^{2} \sqrt {a^{2} x^{2} - 1}} + \frac {3 i x}{8 a^{4} \sqrt {a^{2} x^{2} - 1}} - \frac {3 i \operatorname {acosh}{\left (a x \right )}}{8 a^{5}} & \text {for}\: \left |{a^{2} x^{2}}\right | > 1 \\\frac {x^{5}}{4 \sqrt {- a^{2} x^{2} + 1}} + \frac {x^{3}}{8 a^{2} \sqrt {- a^{2} x^{2} + 1}} - \frac {3 x}{8 a^{4} \sqrt {- a^{2} x^{2} + 1}} + \frac {3 \operatorname {asin}{\left (a x \right )}}{8 a^{5}} & \text {otherwise} \end {cases}\right ) - 3 a^{4} c^{4} \left (\begin {cases} - \frac {x^{2} \sqrt {- a^{2} x^{2} + 1}}{3 a^{2}} - \frac {2 \sqrt {- a^{2} x^{2} + 1}}{3 a^{4}} & \text {for}\: a \neq 0 \\\frac {x^{4}}{4} & \text {otherwise} \end {cases}\right ) + 2 a^{3} c^{4} \left (\begin {cases} - \frac {i x \sqrt {a^{2} x^{2} - 1}}{2 a^{2}} - \frac {i \operatorname {acosh}{\left (a x \right )}}{2 a^{3}} & \text {for}\: \left |{a^{2} x^{2}}\right | > 1 \\\frac {x^{3}}{2 \sqrt {- a^{2} x^{2} + 1}} - \frac {x}{2 a^{2} \sqrt {- a^{2} x^{2} + 1}} + \frac {\operatorname {asin}{\left (a x \right )}}{2 a^{3}} & \text {otherwise} \end {cases}\right ) + 2 a^{2} c^{4} \left (\begin {cases} \frac {x^{2}}{2} & \text {for}\: a^{2} = 0 \\- \frac {\sqrt {- a^{2} x^{2} + 1}}{a^{2}} & \text {otherwise} \end {cases}\right ) - 3 a c^{4} \left (\begin {cases} \sqrt {\frac {1}{a^{2}}} \operatorname {asin}{\left (x \sqrt {a^{2}} \right )} & \text {for}\: a^{2} > 0 \\\sqrt {- \frac {1}{a^{2}}} \operatorname {asinh}{\left (x \sqrt {- a^{2}} \right )} & \text {for}\: a^{2} < 0 \end {cases}\right ) + c^{4} \left (\begin {cases} - \operatorname {acosh}{\left (\frac {1}{a x} \right )} & \text {for}\: \frac {1}{\left |{a^{2} x^{2}}\right |} > 1 \\i \operatorname {asin}{\left (\frac {1}{a x} \right )} & \text {otherwise} \end {cases}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.43, size = 100, normalized size = 0.99 \begin {gather*} -\frac {13 \, a c^{4} \arcsin \left (a x\right ) \mathrm {sgn}\left (a\right )}{8 \, {\left | a \right |}} - \frac {a c^{4} \log \left (\frac {{\left | -2 \, \sqrt {-a^{2} x^{2} + 1} {\left | a \right |} - 2 \, a \right |}}{2 \, a^{2} {\left | x \right |}}\right )}{{\left | a \right |}} - \frac {1}{8} \, {\left (11 \, a c^{4} + 2 \, {\left (a^{3} c^{4} x - 4 \, a^{2} c^{4}\right )} x\right )} \sqrt {-a^{2} x^{2} + 1} x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.78, size = 110, normalized size = 1.09 \begin {gather*} a^2\,c^4\,x^2\,\sqrt {1-a^2\,x^2}-\frac {a^3\,c^4\,x^3\,\sqrt {1-a^2\,x^2}}{4}-\frac {11\,a\,c^4\,x\,\sqrt {1-a^2\,x^2}}{8}-\frac {13\,a\,c^4\,\mathrm {asinh}\left (x\,\sqrt {-a^2}\right )}{8\,\sqrt {-a^2}}+c^4\,\mathrm {atan}\left (\sqrt {1-a^2\,x^2}\,1{}\mathrm {i}\right )\,1{}\mathrm {i} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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