Optimal. Leaf size=113 \[ \frac {2 a^3 \left (c-\frac {c}{a x}\right )^{7/2}}{7 c^3}+\frac {2 a^3 \left (c-\frac {c}{a x}\right )^{3/2}}{3 c}+4 a^3 \sqrt {c-\frac {c}{a x}}-4 \sqrt {2} a^3 \sqrt {c} \tanh ^{-1}\left (\frac {\sqrt {c-\frac {c}{a x}}}{\sqrt {2} \sqrt {c}}\right ) \]
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Rubi [A] time = 0.28, antiderivative size = 113, normalized size of antiderivative = 1.00, number of steps used = 10, number of rules used = 8, integrand size = 27, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.296, Rules used = {6133, 25, 514, 446, 88, 50, 63, 208} \[ \frac {2 a^3 \left (c-\frac {c}{a x}\right )^{7/2}}{7 c^3}+\frac {2 a^3 \left (c-\frac {c}{a x}\right )^{3/2}}{3 c}+4 a^3 \sqrt {c-\frac {c}{a x}}-4 \sqrt {2} a^3 \sqrt {c} \tanh ^{-1}\left (\frac {\sqrt {c-\frac {c}{a x}}}{\sqrt {2} \sqrt {c}}\right ) \]
Antiderivative was successfully verified.
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Rule 25
Rule 50
Rule 63
Rule 88
Rule 208
Rule 446
Rule 514
Rule 6133
Rubi steps
\begin {align*} \int \frac {e^{-2 \tanh ^{-1}(a x)} \sqrt {c-\frac {c}{a x}}}{x^4} \, dx &=\int \frac {\sqrt {c-\frac {c}{a x}} (1-a x)}{x^4 (1+a x)} \, dx\\ &=-\frac {a \int \frac {\left (c-\frac {c}{a x}\right )^{3/2}}{x^3 (1+a x)} \, dx}{c}\\ &=-\frac {a \int \frac {\left (c-\frac {c}{a x}\right )^{3/2}}{\left (a+\frac {1}{x}\right ) x^4} \, dx}{c}\\ &=\frac {a \operatorname {Subst}\left (\int \frac {x^2 \left (c-\frac {c x}{a}\right )^{3/2}}{a+x} \, dx,x,\frac {1}{x}\right )}{c}\\ &=\frac {a \operatorname {Subst}\left (\int \left (\frac {a^2 \left (c-\frac {c x}{a}\right )^{3/2}}{a+x}-\frac {a \left (c-\frac {c x}{a}\right )^{5/2}}{c}\right ) \, dx,x,\frac {1}{x}\right )}{c}\\ &=\frac {2 a^3 \left (c-\frac {c}{a x}\right )^{7/2}}{7 c^3}+\frac {a^3 \operatorname {Subst}\left (\int \frac {\left (c-\frac {c x}{a}\right )^{3/2}}{a+x} \, dx,x,\frac {1}{x}\right )}{c}\\ &=\frac {2 a^3 \left (c-\frac {c}{a x}\right )^{3/2}}{3 c}+\frac {2 a^3 \left (c-\frac {c}{a x}\right )^{7/2}}{7 c^3}+\left (2 a^3\right ) \operatorname {Subst}\left (\int \frac {\sqrt {c-\frac {c x}{a}}}{a+x} \, dx,x,\frac {1}{x}\right )\\ &=4 a^3 \sqrt {c-\frac {c}{a x}}+\frac {2 a^3 \left (c-\frac {c}{a x}\right )^{3/2}}{3 c}+\frac {2 a^3 \left (c-\frac {c}{a x}\right )^{7/2}}{7 c^3}+\left (4 a^3 c\right ) \operatorname {Subst}\left (\int \frac {1}{(a+x) \sqrt {c-\frac {c x}{a}}} \, dx,x,\frac {1}{x}\right )\\ &=4 a^3 \sqrt {c-\frac {c}{a x}}+\frac {2 a^3 \left (c-\frac {c}{a x}\right )^{3/2}}{3 c}+\frac {2 a^3 \left (c-\frac {c}{a x}\right )^{7/2}}{7 c^3}-\left (8 a^4\right ) \operatorname {Subst}\left (\int \frac {1}{2 a-\frac {a x^2}{c}} \, dx,x,\sqrt {c-\frac {c}{a x}}\right )\\ &=4 a^3 \sqrt {c-\frac {c}{a x}}+\frac {2 a^3 \left (c-\frac {c}{a x}\right )^{3/2}}{3 c}+\frac {2 a^3 \left (c-\frac {c}{a x}\right )^{7/2}}{7 c^3}-4 \sqrt {2} a^3 \sqrt {c} \tanh ^{-1}\left (\frac {\sqrt {c-\frac {c}{a x}}}{\sqrt {2} \sqrt {c}}\right )\\ \end {align*}
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Mathematica [A] time = 0.13, size = 87, normalized size = 0.77 \[ \frac {2 \left (52 a^3 x^3-16 a^2 x^2+9 a x-3\right ) \sqrt {c-\frac {c}{a x}}}{21 x^3}-4 \sqrt {2} a^3 \sqrt {c} \tanh ^{-1}\left (\frac {\sqrt {c-\frac {c}{a x}}}{\sqrt {2} \sqrt {c}}\right ) \]
Antiderivative was successfully verified.
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fricas [A] time = 0.64, size = 197, normalized size = 1.74 \[ \left [\frac {2 \, {\left (21 \, \sqrt {2} a^{3} \sqrt {c} x^{3} \log \left (\frac {2 \, \sqrt {2} a \sqrt {c} x \sqrt {\frac {a c x - c}{a x}} - 3 \, a c x + c}{a x + 1}\right ) + {\left (52 \, a^{3} x^{3} - 16 \, a^{2} x^{2} + 9 \, a x - 3\right )} \sqrt {\frac {a c x - c}{a x}}\right )}}{21 \, x^{3}}, \frac {2 \, {\left (42 \, \sqrt {2} a^{3} \sqrt {-c} x^{3} \arctan \left (\frac {\sqrt {2} \sqrt {-c} \sqrt {\frac {a c x - c}{a x}}}{2 \, c}\right ) + {\left (52 \, a^{3} x^{3} - 16 \, a^{2} x^{2} + 9 \, a x - 3\right )} \sqrt {\frac {a c x - c}{a x}}\right )}}{21 \, x^{3}}\right ] \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [B] time = 1.23, size = 356, normalized size = 3.15 \[ \frac {4 \, \sqrt {2} a^{4} c \arctan \left (\frac {\sqrt {2} {\left ({\left (\sqrt {a^{2} c} x - \sqrt {a^{2} c x^{2} - a c x}\right )} a + \sqrt {c} {\left | a \right |}\right )}}{2 \, a \sqrt {-c}}\right )}{\sqrt {-c} {\left | a \right |} \mathrm {sgn}\relax (x)} + \frac {2 \, {\left (84 \, {\left (\sqrt {a^{2} c} x - \sqrt {a^{2} c x^{2} - a c x}\right )}^{6} a^{7} c - 84 \, {\left (\sqrt {a^{2} c} x - \sqrt {a^{2} c x^{2} - a c x}\right )}^{5} a^{6} c^{\frac {3}{2}} {\left | a \right |} + 112 \, {\left (\sqrt {a^{2} c} x - \sqrt {a^{2} c x^{2} - a c x}\right )}^{4} a^{7} c^{2} - 105 \, {\left (\sqrt {a^{2} c} x - \sqrt {a^{2} c x^{2} - a c x}\right )}^{3} a^{6} c^{\frac {5}{2}} {\left | a \right |} + 63 \, {\left (\sqrt {a^{2} c} x - \sqrt {a^{2} c x^{2} - a c x}\right )}^{2} a^{7} c^{3} - 21 \, {\left (\sqrt {a^{2} c} x - \sqrt {a^{2} c x^{2} - a c x}\right )} a^{6} c^{\frac {7}{2}} {\left | a \right |} + 3 \, a^{7} c^{4}\right )}}{21 \, {\left (\sqrt {a^{2} c} x - \sqrt {a^{2} c x^{2} - a c x}\right )}^{7} a^{3} {\left | a \right |} \mathrm {sgn}\relax (x)} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [B] time = 0.05, size = 302, normalized size = 2.67 \[ -\frac {\sqrt {\frac {c \left (a x -1\right )}{a x}}\, \left (-126 \sqrt {a \,x^{2}-x}\, \sqrt {\frac {1}{a}}\, a^{\frac {9}{2}} x^{5}+42 \sqrt {\frac {1}{a}}\, a^{\frac {9}{2}} \sqrt {\left (a x -1\right ) x}\, x^{5}+84 \left (a \,x^{2}-x \right )^{\frac {3}{2}} \sqrt {\frac {1}{a}}\, a^{\frac {7}{2}} x^{3}+63 \ln \left (\frac {2 \sqrt {a \,x^{2}-x}\, \sqrt {a}+2 a x -1}{2 \sqrt {a}}\right ) \sqrt {\frac {1}{a}}\, x^{5} a^{4}-42 \ln \left (\frac {2 \sqrt {2}\, \sqrt {\frac {1}{a}}\, \sqrt {\left (a x -1\right ) x}\, a -3 a x +1}{a x +1}\right ) \sqrt {2}\, a^{\frac {7}{2}} x^{5}-63 \ln \left (\frac {2 \sqrt {\left (a x -1\right ) x}\, \sqrt {a}+2 a x -1}{2 \sqrt {a}}\right ) \sqrt {\frac {1}{a}}\, x^{5} a^{4}-20 a^{\frac {5}{2}} \left (a \,x^{2}-x \right )^{\frac {3}{2}} x^{2} \sqrt {\frac {1}{a}}+12 a^{\frac {3}{2}} \left (a \,x^{2}-x \right )^{\frac {3}{2}} x \sqrt {\frac {1}{a}}-6 \left (a \,x^{2}-x \right )^{\frac {3}{2}} \sqrt {a}\, \sqrt {\frac {1}{a}}\right )}{21 x^{4} \sqrt {\left (a x -1\right ) x}\, \sqrt {a}\, \sqrt {\frac {1}{a}}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [F] time = 0.00, size = 0, normalized size = 0.00 \[ -\int \frac {{\left (a^{2} x^{2} - 1\right )} \sqrt {c - \frac {c}{a x}}}{{\left (a x + 1\right )}^{2} x^{4}}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 2.11, size = 96, normalized size = 0.85 \[ 4\,a^3\,\sqrt {c-\frac {c}{a\,x}}+\frac {2\,a^3\,{\left (c-\frac {c}{a\,x}\right )}^{3/2}}{3\,c}+\frac {2\,a^3\,{\left (c-\frac {c}{a\,x}\right )}^{7/2}}{7\,c^3}+\sqrt {2}\,a^3\,\sqrt {c}\,\mathrm {atan}\left (\frac {\sqrt {2}\,\sqrt {c-\frac {c}{a\,x}}\,1{}\mathrm {i}}{2\,\sqrt {c}}\right )\,4{}\mathrm {i} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F] time = 0.00, size = 0, normalized size = 0.00 \[ - \int \left (- \frac {\sqrt {c - \frac {c}{a x}}}{a x^{5} + x^{4}}\right )\, dx - \int \frac {a x \sqrt {c - \frac {c}{a x}}}{a x^{5} + x^{4}}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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