Optimal. Leaf size=109 \[ \frac{1}{6} x^6 \left (a+b \text{sech}^{-1}(c x)\right )-\frac{b x^4 \sqrt{1-c x}}{30 c^2 \sqrt{\frac{1}{c x+1}}}-\frac{2 b x^2 \sqrt{1-c x}}{45 c^4 \sqrt{\frac{1}{c x+1}}}-\frac{4 b \sqrt{1-c x}}{45 c^6 \sqrt{\frac{1}{c x+1}}} \]
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Rubi [A] time = 0.0466268, antiderivative size = 109, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 4, integrand size = 12, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.333, Rules used = {6283, 100, 12, 74} \[ \frac{1}{6} x^6 \left (a+b \text{sech}^{-1}(c x)\right )-\frac{b x^4 \sqrt{1-c x}}{30 c^2 \sqrt{\frac{1}{c x+1}}}-\frac{2 b x^2 \sqrt{1-c x}}{45 c^4 \sqrt{\frac{1}{c x+1}}}-\frac{4 b \sqrt{1-c x}}{45 c^6 \sqrt{\frac{1}{c x+1}}} \]
Antiderivative was successfully verified.
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Rule 6283
Rule 100
Rule 12
Rule 74
Rubi steps
\begin{align*} \int x^5 \left (a+b \text{sech}^{-1}(c x)\right ) \, dx &=\frac{1}{6} x^6 \left (a+b \text{sech}^{-1}(c x)\right )+\frac{1}{6} \left (b \sqrt{\frac{1}{1+c x}} \sqrt{1+c x}\right ) \int \frac{x^5}{\sqrt{1-c x} \sqrt{1+c x}} \, dx\\ &=-\frac{b x^4 \sqrt{1-c x}}{30 c^2 \sqrt{\frac{1}{1+c x}}}+\frac{1}{6} x^6 \left (a+b \text{sech}^{-1}(c x)\right )-\frac{\left (b \sqrt{\frac{1}{1+c x}} \sqrt{1+c x}\right ) \int -\frac{4 x^3}{\sqrt{1-c x} \sqrt{1+c x}} \, dx}{30 c^2}\\ &=-\frac{b x^4 \sqrt{1-c x}}{30 c^2 \sqrt{\frac{1}{1+c x}}}+\frac{1}{6} x^6 \left (a+b \text{sech}^{-1}(c x)\right )+\frac{\left (2 b \sqrt{\frac{1}{1+c x}} \sqrt{1+c x}\right ) \int \frac{x^3}{\sqrt{1-c x} \sqrt{1+c x}} \, dx}{15 c^2}\\ &=-\frac{2 b x^2 \sqrt{1-c x}}{45 c^4 \sqrt{\frac{1}{1+c x}}}-\frac{b x^4 \sqrt{1-c x}}{30 c^2 \sqrt{\frac{1}{1+c x}}}+\frac{1}{6} x^6 \left (a+b \text{sech}^{-1}(c x)\right )-\frac{\left (2 b \sqrt{\frac{1}{1+c x}} \sqrt{1+c x}\right ) \int -\frac{2 x}{\sqrt{1-c x} \sqrt{1+c x}} \, dx}{45 c^4}\\ &=-\frac{2 b x^2 \sqrt{1-c x}}{45 c^4 \sqrt{\frac{1}{1+c x}}}-\frac{b x^4 \sqrt{1-c x}}{30 c^2 \sqrt{\frac{1}{1+c x}}}+\frac{1}{6} x^6 \left (a+b \text{sech}^{-1}(c x)\right )+\frac{\left (4 b \sqrt{\frac{1}{1+c x}} \sqrt{1+c x}\right ) \int \frac{x}{\sqrt{1-c x} \sqrt{1+c x}} \, dx}{45 c^4}\\ &=-\frac{4 b \sqrt{1-c x}}{45 c^6 \sqrt{\frac{1}{1+c x}}}-\frac{2 b x^2 \sqrt{1-c x}}{45 c^4 \sqrt{\frac{1}{1+c x}}}-\frac{b x^4 \sqrt{1-c x}}{30 c^2 \sqrt{\frac{1}{1+c x}}}+\frac{1}{6} x^6 \left (a+b \text{sech}^{-1}(c x)\right )\\ \end{align*}
Mathematica [A] time = 0.0840902, size = 97, normalized size = 0.89 \[ \frac{a x^6}{6}+b \sqrt{\frac{1-c x}{c x+1}} \left (-\frac{x^4}{30 c^2}-\frac{2 x^3}{45 c^3}-\frac{2 x^2}{45 c^4}-\frac{4 x}{45 c^5}-\frac{4}{45 c^6}-\frac{x^5}{30 c}\right )+\frac{1}{6} b x^6 \text{sech}^{-1}(c x) \]
Antiderivative was successfully verified.
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Maple [A] time = 0.193, size = 81, normalized size = 0.7 \begin{align*}{\frac{1}{{c}^{6}} \left ({\frac{{c}^{6}{x}^{6}a}{6}}+b \left ({\frac{{c}^{6}{x}^{6}{\rm arcsech} \left (cx\right )}{6}}-{\frac{cx \left ( 3\,{c}^{4}{x}^{4}+4\,{c}^{2}{x}^{2}+8 \right ) }{90}\sqrt{-{\frac{cx-1}{cx}}}\sqrt{{\frac{cx+1}{cx}}}} \right ) \right ) } \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A] time = 0.989576, size = 105, normalized size = 0.96 \begin{align*} \frac{1}{6} \, a x^{6} + \frac{1}{90} \,{\left (15 \, x^{6} \operatorname{arsech}\left (c x\right ) - \frac{3 \, c^{4} x^{5}{\left (\frac{1}{c^{2} x^{2}} - 1\right )}^{\frac{5}{2}} - 10 \, c^{2} x^{3}{\left (\frac{1}{c^{2} x^{2}} - 1\right )}^{\frac{3}{2}} + 15 \, x \sqrt{\frac{1}{c^{2} x^{2}} - 1}}{c^{5}}\right )} b \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.98351, size = 217, normalized size = 1.99 \begin{align*} \frac{15 \, b c^{5} x^{6} \log \left (\frac{c x \sqrt{-\frac{c^{2} x^{2} - 1}{c^{2} x^{2}}} + 1}{c x}\right ) + 15 \, a c^{5} x^{6} -{\left (3 \, b c^{4} x^{5} + 4 \, b c^{2} x^{3} + 8 \, b x\right )} \sqrt{-\frac{c^{2} x^{2} - 1}{c^{2} x^{2}}}}{90 \, c^{5}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A] time = 16.6257, size = 94, normalized size = 0.86 \begin{align*} \begin{cases} \frac{a x^{6}}{6} + \frac{b x^{6} \operatorname{asech}{\left (c x \right )}}{6} - \frac{b x^{4} \sqrt{- c^{2} x^{2} + 1}}{30 c^{2}} - \frac{2 b x^{2} \sqrt{- c^{2} x^{2} + 1}}{45 c^{4}} - \frac{4 b \sqrt{- c^{2} x^{2} + 1}}{45 c^{6}} & \text{for}\: c \neq 0 \\\frac{x^{6} \left (a + \infty b\right )}{6} & \text{otherwise} \end{cases} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int{\left (b \operatorname{arsech}\left (c x\right ) + a\right )} x^{5}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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