Optimal. Leaf size=125 \[ -\frac {c^4 (6-a x) \sqrt {1-a^2 x^2}}{2 a^2 x}-\frac {c^4 \tanh ^{-1}\left (\sqrt {1-a^2 x^2}\right )}{2 a}-\frac {c^4 \left (1-a^2 x^2\right )^{3/2}}{3 a^4 x^3}+\frac {3 c^4 \left (1-a^2 x^2\right )^{3/2}}{2 a^3 x^2}-\frac {3 c^4 \sin ^{-1}(a x)}{a} \]
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Rubi [A] time = 0.26, antiderivative size = 125, normalized size of antiderivative = 1.00, number of steps used = 10, number of rules used = 9, integrand size = 20, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.450, Rules used = {6131, 6128, 1807, 813, 844, 216, 266, 63, 208} \[ \frac {3 c^4 \left (1-a^2 x^2\right )^{3/2}}{2 a^3 x^2}-\frac {c^4 \left (1-a^2 x^2\right )^{3/2}}{3 a^4 x^3}-\frac {c^4 (6-a x) \sqrt {1-a^2 x^2}}{2 a^2 x}-\frac {c^4 \tanh ^{-1}\left (\sqrt {1-a^2 x^2}\right )}{2 a}-\frac {3 c^4 \sin ^{-1}(a x)}{a} \]
Antiderivative was successfully verified.
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Rule 63
Rule 208
Rule 216
Rule 266
Rule 813
Rule 844
Rule 1807
Rule 6128
Rule 6131
Rubi steps
\begin {align*} \int e^{\tanh ^{-1}(a x)} \left (c-\frac {c}{a x}\right )^4 \, dx &=\frac {c^4 \int \frac {e^{\tanh ^{-1}(a x)} (1-a x)^4}{x^4} \, dx}{a^4}\\ &=\frac {c^4 \int \frac {(1-a x)^3 \sqrt {1-a^2 x^2}}{x^4} \, dx}{a^4}\\ &=-\frac {c^4 \left (1-a^2 x^2\right )^{3/2}}{3 a^4 x^3}-\frac {c^4 \int \frac {\sqrt {1-a^2 x^2} \left (9 a-9 a^2 x+3 a^3 x^2\right )}{x^3} \, dx}{3 a^4}\\ &=-\frac {c^4 \left (1-a^2 x^2\right )^{3/2}}{3 a^4 x^3}+\frac {3 c^4 \left (1-a^2 x^2\right )^{3/2}}{2 a^3 x^2}+\frac {c^4 \int \frac {\left (18 a^2+3 a^3 x\right ) \sqrt {1-a^2 x^2}}{x^2} \, dx}{6 a^4}\\ &=-\frac {c^4 (6-a x) \sqrt {1-a^2 x^2}}{2 a^2 x}-\frac {c^4 \left (1-a^2 x^2\right )^{3/2}}{3 a^4 x^3}+\frac {3 c^4 \left (1-a^2 x^2\right )^{3/2}}{2 a^3 x^2}-\frac {c^4 \int \frac {-6 a^3+36 a^4 x}{x \sqrt {1-a^2 x^2}} \, dx}{12 a^4}\\ &=-\frac {c^4 (6-a x) \sqrt {1-a^2 x^2}}{2 a^2 x}-\frac {c^4 \left (1-a^2 x^2\right )^{3/2}}{3 a^4 x^3}+\frac {3 c^4 \left (1-a^2 x^2\right )^{3/2}}{2 a^3 x^2}-\left (3 c^4\right ) \int \frac {1}{\sqrt {1-a^2 x^2}} \, dx+\frac {c^4 \int \frac {1}{x \sqrt {1-a^2 x^2}} \, dx}{2 a}\\ &=-\frac {c^4 (6-a x) \sqrt {1-a^2 x^2}}{2 a^2 x}-\frac {c^4 \left (1-a^2 x^2\right )^{3/2}}{3 a^4 x^3}+\frac {3 c^4 \left (1-a^2 x^2\right )^{3/2}}{2 a^3 x^2}-\frac {3 c^4 \sin ^{-1}(a x)}{a}+\frac {c^4 \operatorname {Subst}\left (\int \frac {1}{x \sqrt {1-a^2 x}} \, dx,x,x^2\right )}{4 a}\\ &=-\frac {c^4 (6-a x) \sqrt {1-a^2 x^2}}{2 a^2 x}-\frac {c^4 \left (1-a^2 x^2\right )^{3/2}}{3 a^4 x^3}+\frac {3 c^4 \left (1-a^2 x^2\right )^{3/2}}{2 a^3 x^2}-\frac {3 c^4 \sin ^{-1}(a x)}{a}-\frac {c^4 \operatorname {Subst}\left (\int \frac {1}{\frac {1}{a^2}-\frac {x^2}{a^2}} \, dx,x,\sqrt {1-a^2 x^2}\right )}{2 a^3}\\ &=-\frac {c^4 (6-a x) \sqrt {1-a^2 x^2}}{2 a^2 x}-\frac {c^4 \left (1-a^2 x^2\right )^{3/2}}{3 a^4 x^3}+\frac {3 c^4 \left (1-a^2 x^2\right )^{3/2}}{2 a^3 x^2}-\frac {3 c^4 \sin ^{-1}(a x)}{a}-\frac {c^4 \tanh ^{-1}\left (\sqrt {1-a^2 x^2}\right )}{2 a}\\ \end {align*}
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Mathematica [A] time = 0.26, size = 86, normalized size = 0.69 \[ \frac {c^4 \left (-3 \log \left (\sqrt {1-a^2 x^2}+1\right )-\frac {\sqrt {1-a^2 x^2} \left (6 a^3 x^3+16 a^2 x^2-9 a x+2\right )}{a^3 x^3}+3 \log (a x)-18 \sin ^{-1}(a x)\right )}{6 a} \]
Warning: Unable to verify antiderivative.
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fricas [A] time = 0.52, size = 132, normalized size = 1.06 \[ \frac {36 \, a^{3} c^{4} x^{3} \arctan \left (\frac {\sqrt {-a^{2} x^{2} + 1} - 1}{a x}\right ) + 3 \, a^{3} c^{4} x^{3} \log \left (\frac {\sqrt {-a^{2} x^{2} + 1} - 1}{x}\right ) - 6 \, a^{3} c^{4} x^{3} - {\left (6 \, a^{3} c^{4} x^{3} + 16 \, a^{2} c^{4} x^{2} - 9 \, a c^{4} x + 2 \, c^{4}\right )} \sqrt {-a^{2} x^{2} + 1}}{6 \, a^{4} x^{3}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [B] time = 0.43, size = 263, normalized size = 2.10 \[ \frac {{\left (c^{4} - \frac {9 \, {\left (\sqrt {-a^{2} x^{2} + 1} {\left | a \right |} + a\right )} c^{4}}{a^{2} x} + \frac {33 \, {\left (\sqrt {-a^{2} x^{2} + 1} {\left | a \right |} + a\right )}^{2} c^{4}}{a^{4} x^{2}}\right )} a^{6} x^{3}}{24 \, {\left (\sqrt {-a^{2} x^{2} + 1} {\left | a \right |} + a\right )}^{3} {\left | a \right |}} - \frac {3 \, c^{4} \arcsin \left (a x\right ) \mathrm {sgn}\relax (a)}{{\left | a \right |}} - \frac {c^{4} \log \left (\frac {{\left | -2 \, \sqrt {-a^{2} x^{2} + 1} {\left | a \right |} - 2 \, a \right |}}{2 \, a^{2} {\left | x \right |}}\right )}{2 \, {\left | a \right |}} - \frac {\sqrt {-a^{2} x^{2} + 1} c^{4}}{a} - \frac {\frac {33 \, {\left (\sqrt {-a^{2} x^{2} + 1} {\left | a \right |} + a\right )} c^{4}}{x} - \frac {9 \, {\left (\sqrt {-a^{2} x^{2} + 1} {\left | a \right |} + a\right )}^{2} c^{4}}{a^{2} x^{2}} + \frac {{\left (\sqrt {-a^{2} x^{2} + 1} {\left | a \right |} + a\right )}^{3} c^{4}}{a^{4} x^{3}}}{24 \, a^{2} {\left | a \right |}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.05, size = 142, normalized size = 1.14 \[ -\frac {c^{4} \sqrt {-a^{2} x^{2}+1}}{a}-\frac {3 c^{4} \arctan \left (\frac {\sqrt {a^{2}}\, x}{\sqrt {-a^{2} x^{2}+1}}\right )}{\sqrt {a^{2}}}-\frac {c^{4} \arctanh \left (\frac {1}{\sqrt {-a^{2} x^{2}+1}}\right )}{2 a}-\frac {8 c^{4} \sqrt {-a^{2} x^{2}+1}}{3 a^{2} x}-\frac {c^{4} \sqrt {-a^{2} x^{2}+1}}{3 a^{4} x^{3}}+\frac {3 c^{4} \sqrt {-a^{2} x^{2}+1}}{2 x^{2} a^{3}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.51, size = 190, normalized size = 1.52 \[ -\frac {3 \, c^{4} \arcsin \left (a x\right )}{a} - \frac {2 \, c^{4} \log \left (\frac {2 \, \sqrt {-a^{2} x^{2} + 1}}{{\left | x \right |}} + \frac {2}{{\left | x \right |}}\right )}{a} - \frac {\sqrt {-a^{2} x^{2} + 1} c^{4}}{a} + \frac {3 \, {\left (a^{2} \log \left (\frac {2 \, \sqrt {-a^{2} x^{2} + 1}}{{\left | x \right |}} + \frac {2}{{\left | x \right |}}\right ) + \frac {\sqrt {-a^{2} x^{2} + 1}}{x^{2}}\right )} c^{4}}{2 \, a^{3}} - \frac {2 \, \sqrt {-a^{2} x^{2} + 1} c^{4}}{a^{2} x} - \frac {{\left (\frac {2 \, \sqrt {-a^{2} x^{2} + 1} a^{2}}{x} + \frac {\sqrt {-a^{2} x^{2} + 1}}{x^{3}}\right )} c^{4}}{3 \, a^{4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 0.05, size = 137, normalized size = 1.10 \[ \frac {3\,c^4\,\sqrt {1-a^2\,x^2}}{2\,a^3\,x^2}-\frac {c^4\,\sqrt {1-a^2\,x^2}}{a}-\frac {8\,c^4\,\sqrt {1-a^2\,x^2}}{3\,a^2\,x}-\frac {3\,c^4\,\mathrm {asinh}\left (x\,\sqrt {-a^2}\right )}{\sqrt {-a^2}}-\frac {c^4\,\sqrt {1-a^2\,x^2}}{3\,a^4\,x^3}+\frac {c^4\,\mathrm {atan}\left (\sqrt {1-a^2\,x^2}\,1{}\mathrm {i}\right )\,1{}\mathrm {i}}{2\,a} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [A] time = 11.93, size = 357, normalized size = 2.86 \[ a c^{4} \left (\begin {cases} \frac {x^{2}}{2} & \text {for}\: a^{2} = 0 \\- \frac {\sqrt {- a^{2} x^{2} + 1}}{a^{2}} & \text {otherwise} \end {cases}\right ) - 3 c^{4} \left (\begin {cases} \sqrt {\frac {1}{a^{2}}} \operatorname {asin}{\left (x \sqrt {a^{2}} \right )} & \text {for}\: a^{2} > 0 \\\sqrt {- \frac {1}{a^{2}}} \operatorname {asinh}{\left (x \sqrt {- a^{2}} \right )} & \text {for}\: a^{2} < 0 \end {cases}\right ) + \frac {2 c^{4} \left (\begin {cases} - \operatorname {acosh}{\left (\frac {1}{a x} \right )} & \text {for}\: \frac {1}{\left |{a^{2} x^{2}}\right |} > 1 \\i \operatorname {asin}{\left (\frac {1}{a x} \right )} & \text {otherwise} \end {cases}\right )}{a} + \frac {2 c^{4} \left (\begin {cases} - \frac {i \sqrt {a^{2} x^{2} - 1}}{x} & \text {for}\: \left |{a^{2} x^{2}}\right | > 1 \\- \frac {\sqrt {- a^{2} x^{2} + 1}}{x} & \text {otherwise} \end {cases}\right )}{a^{2}} - \frac {3 c^{4} \left (\begin {cases} - \frac {a^{2} \operatorname {acosh}{\left (\frac {1}{a x} \right )}}{2} - \frac {a \sqrt {-1 + \frac {1}{a^{2} x^{2}}}}{2 x} & \text {for}\: \frac {1}{\left |{a^{2} x^{2}}\right |} > 1 \\\frac {i a^{2} \operatorname {asin}{\left (\frac {1}{a x} \right )}}{2} - \frac {i a}{2 x \sqrt {1 - \frac {1}{a^{2} x^{2}}}} + \frac {i}{2 a x^{3} \sqrt {1 - \frac {1}{a^{2} x^{2}}}} & \text {otherwise} \end {cases}\right )}{a^{3}} + \frac {c^{4} \left (\begin {cases} - \frac {2 i a^{2} \sqrt {a^{2} x^{2} - 1}}{3 x} - \frac {i \sqrt {a^{2} x^{2} - 1}}{3 x^{3}} & \text {for}\: \left |{a^{2} x^{2}}\right | > 1 \\- \frac {2 a^{2} \sqrt {- a^{2} x^{2} + 1}}{3 x} - \frac {\sqrt {- a^{2} x^{2} + 1}}{3 x^{3}} & \text {otherwise} \end {cases}\right )}{a^{4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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