Optimal. Leaf size=163 \[ \frac {3 b^3 \sqrt {\frac {1-c x}{1+c x}} (1+c x)}{8 x^2}-\frac {3}{8} b^3 c^2 \text {sech}^{-1}(c x)-\frac {3 b^2 (1-c x) (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )}{4 x^2}+\frac {3 b \sqrt {\frac {1-c x}{1+c x}} (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )^2}{4 x^2}-\frac {1}{4} c^2 \left (a+b \text {sech}^{-1}(c x)\right )^3-\frac {(1-c x) (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )^3}{2 x^2} \]
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Rubi [A]
time = 0.08, antiderivative size = 163, normalized size of antiderivative = 1.00, number of steps
used = 6, number of rules used = 6, integrand size = 14, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.429, Rules used = {6420, 5554,
3392, 32, 2715, 8} \begin {gather*} -\frac {3 b^2 (1-c x) (c x+1) \left (a+b \text {sech}^{-1}(c x)\right )}{4 x^2}-\frac {1}{4} c^2 \left (a+b \text {sech}^{-1}(c x)\right )^3+\frac {3 b \sqrt {\frac {1-c x}{c x+1}} (c x+1) \left (a+b \text {sech}^{-1}(c x)\right )^2}{4 x^2}-\frac {(1-c x) (c x+1) \left (a+b \text {sech}^{-1}(c x)\right )^3}{2 x^2}-\frac {3}{8} b^3 c^2 \text {sech}^{-1}(c x)+\frac {3 b^3 \sqrt {\frac {1-c x}{c x+1}} (c x+1)}{8 x^2} \end {gather*}
Antiderivative was successfully verified.
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Rule 8
Rule 32
Rule 2715
Rule 3392
Rule 5554
Rule 6420
Rubi steps
\begin {align*} \int \frac {\left (a+b \text {sech}^{-1}(c x)\right )^3}{x^3} \, dx &=-\left (c^2 \text {Subst}\left (\int (a+b x)^3 \cosh (x) \sinh (x) \, dx,x,\text {sech}^{-1}(c x)\right )\right )\\ &=-\frac {(1-c x) (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )^3}{2 x^2}+\frac {1}{2} \left (3 b c^2\right ) \text {Subst}\left (\int (a+b x)^2 \sinh ^2(x) \, dx,x,\text {sech}^{-1}(c x)\right )\\ &=-\frac {3 b^2 (1-c x) (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )}{4 x^2}+\frac {3 b \sqrt {\frac {1-c x}{1+c x}} (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )^2}{4 x^2}-\frac {(1-c x) (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )^3}{2 x^2}-\frac {1}{4} \left (3 b c^2\right ) \text {Subst}\left (\int (a+b x)^2 \, dx,x,\text {sech}^{-1}(c x)\right )+\frac {1}{4} \left (3 b^3 c^2\right ) \text {Subst}\left (\int \sinh ^2(x) \, dx,x,\text {sech}^{-1}(c x)\right )\\ &=\frac {3 b^3 \sqrt {\frac {1-c x}{1+c x}} (1+c x)}{8 x^2}-\frac {3 b^2 (1-c x) (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )}{4 x^2}+\frac {3 b \sqrt {\frac {1-c x}{1+c x}} (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )^2}{4 x^2}-\frac {1}{4} c^2 \left (a+b \text {sech}^{-1}(c x)\right )^3-\frac {(1-c x) (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )^3}{2 x^2}-\frac {1}{8} \left (3 b^3 c^2\right ) \text {Subst}\left (\int 1 \, dx,x,\text {sech}^{-1}(c x)\right )\\ &=\frac {3 b^3 \sqrt {\frac {1-c x}{1+c x}} (1+c x)}{8 x^2}-\frac {3}{8} b^3 c^2 \text {sech}^{-1}(c x)-\frac {3 b^2 (1-c x) (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )}{4 x^2}+\frac {3 b \sqrt {\frac {1-c x}{1+c x}} (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )^2}{4 x^2}-\frac {1}{4} c^2 \left (a+b \text {sech}^{-1}(c x)\right )^3-\frac {(1-c x) (1+c x) \left (a+b \text {sech}^{-1}(c x)\right )^3}{2 x^2}\\ \end {align*}
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Mathematica [A]
time = 0.31, size = 245, normalized size = 1.50 \begin {gather*} \frac {-4 a^3-6 a b^2+3 b \left (2 a^2+b^2\right ) \sqrt {\frac {1-c x}{1+c x}} (1+c x)-6 b \left (2 a^2+b^2-2 a b \sqrt {\frac {1-c x}{1+c x}} (1+c x)\right ) \text {sech}^{-1}(c x)+6 b^2 \left (b \sqrt {\frac {1-c x}{1+c x}} (1+c x)+a \left (-2+c^2 x^2\right )\right ) \text {sech}^{-1}(c x)^2+2 b^3 \left (-2+c^2 x^2\right ) \text {sech}^{-1}(c x)^3-3 b \left (2 a^2+b^2\right ) c^2 x^2 \log (x)+3 b \left (2 a^2+b^2\right ) c^2 x^2 \log \left (1+\sqrt {\frac {1-c x}{1+c x}}+c x \sqrt {\frac {1-c x}{1+c x}}\right )}{8 x^2} \end {gather*}
Antiderivative was successfully verified.
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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(320\) vs.
\(2(147)=294\).
time = 0.30, size = 321, normalized size = 1.97
method | result | size |
derivativedivides | \(c^{2} \left (-\frac {a^{3}}{2 c^{2} x^{2}}+b^{3} \left (-\frac {\mathrm {arcsech}\left (c x \right )^{3}}{2 c^{2} x^{2}}+\frac {3 \mathrm {arcsech}\left (c x \right )^{2} \sqrt {-\frac {c x -1}{c x}}\, \sqrt {\frac {c x +1}{c x}}}{4 c x}+\frac {\mathrm {arcsech}\left (c x \right )^{3}}{4}-\frac {3 \,\mathrm {arcsech}\left (c x \right )}{4 c^{2} x^{2}}+\frac {3 \sqrt {-\frac {c x -1}{c x}}\, \sqrt {\frac {c x +1}{c x}}}{8 c x}+\frac {3 \,\mathrm {arcsech}\left (c x \right )}{8}\right )+3 a \,b^{2} \left (-\frac {\mathrm {arcsech}\left (c x \right )^{2}}{2 c^{2} x^{2}}+\frac {\mathrm {arcsech}\left (c x \right ) \sqrt {-\frac {c x -1}{c x}}\, \sqrt {\frac {c x +1}{c x}}}{2 c x}+\frac {\mathrm {arcsech}\left (c x \right )^{2}}{4}-\frac {1}{4 c^{2} x^{2}}\right )+3 a^{2} b \left (-\frac {\mathrm {arcsech}\left (c x \right )}{2 c^{2} x^{2}}+\frac {\sqrt {-\frac {c x -1}{c x}}\, \sqrt {\frac {c x +1}{c x}}\, \left (\arctanh \left (\frac {1}{\sqrt {-c^{2} x^{2}+1}}\right ) c^{2} x^{2}+\sqrt {-c^{2} x^{2}+1}\right )}{4 c x \sqrt {-c^{2} x^{2}+1}}\right )\right )\) | \(321\) |
default | \(c^{2} \left (-\frac {a^{3}}{2 c^{2} x^{2}}+b^{3} \left (-\frac {\mathrm {arcsech}\left (c x \right )^{3}}{2 c^{2} x^{2}}+\frac {3 \mathrm {arcsech}\left (c x \right )^{2} \sqrt {-\frac {c x -1}{c x}}\, \sqrt {\frac {c x +1}{c x}}}{4 c x}+\frac {\mathrm {arcsech}\left (c x \right )^{3}}{4}-\frac {3 \,\mathrm {arcsech}\left (c x \right )}{4 c^{2} x^{2}}+\frac {3 \sqrt {-\frac {c x -1}{c x}}\, \sqrt {\frac {c x +1}{c x}}}{8 c x}+\frac {3 \,\mathrm {arcsech}\left (c x \right )}{8}\right )+3 a \,b^{2} \left (-\frac {\mathrm {arcsech}\left (c x \right )^{2}}{2 c^{2} x^{2}}+\frac {\mathrm {arcsech}\left (c x \right ) \sqrt {-\frac {c x -1}{c x}}\, \sqrt {\frac {c x +1}{c x}}}{2 c x}+\frac {\mathrm {arcsech}\left (c x \right )^{2}}{4}-\frac {1}{4 c^{2} x^{2}}\right )+3 a^{2} b \left (-\frac {\mathrm {arcsech}\left (c x \right )}{2 c^{2} x^{2}}+\frac {\sqrt {-\frac {c x -1}{c x}}\, \sqrt {\frac {c x +1}{c x}}\, \left (\arctanh \left (\frac {1}{\sqrt {-c^{2} x^{2}+1}}\right ) c^{2} x^{2}+\sqrt {-c^{2} x^{2}+1}\right )}{4 c x \sqrt {-c^{2} x^{2}+1}}\right )\right )\) | \(321\) |
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 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.35, size = 271, normalized size = 1.66 \begin {gather*} \frac {2 \, {\left (b^{3} c^{2} x^{2} - 2 \, b^{3}\right )} \log \left (\frac {c x \sqrt {-\frac {c^{2} x^{2} - 1}{c^{2} x^{2}}} + 1}{c x}\right )^{3} + 3 \, {\left (2 \, a^{2} b + b^{3}\right )} c x \sqrt {-\frac {c^{2} x^{2} - 1}{c^{2} x^{2}}} - 4 \, a^{3} - 6 \, a b^{2} + 6 \, {\left (a b^{2} c^{2} x^{2} + b^{3} c x \sqrt {-\frac {c^{2} x^{2} - 1}{c^{2} x^{2}}} - 2 \, a b^{2}\right )} \log \left (\frac {c x \sqrt {-\frac {c^{2} x^{2} - 1}{c^{2} x^{2}}} + 1}{c x}\right )^{2} + 3 \, {\left (4 \, a b^{2} c x \sqrt {-\frac {c^{2} x^{2} - 1}{c^{2} x^{2}}} + {\left (2 \, a^{2} b + b^{3}\right )} c^{2} x^{2} - 4 \, a^{2} b - 2 \, b^{3}\right )} \log \left (\frac {c x \sqrt {-\frac {c^{2} x^{2} - 1}{c^{2} x^{2}}} + 1}{c x}\right )}{8 \, x^{2}} \end {gather*}
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 \begin {gather*} \int \frac {\left (a + b \operatorname {asech}{\left (c x \right )}\right )^{3}}{x^{3}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [F]
time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int \frac {{\left (a+b\,\mathrm {acosh}\left (\frac {1}{c\,x}\right )\right )}^3}{x^3} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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