Optimal. Leaf size=27 \[ \frac {2}{9} x^{9/2} \tanh ^{-1}(\tanh (a+b x))-\frac {4}{99} b x^{11/2} \]
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Rubi [A] time = 0.01, antiderivative size = 27, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.154, Rules used = {2168, 30} \[ \frac {2}{9} x^{9/2} \tanh ^{-1}(\tanh (a+b x))-\frac {4}{99} b x^{11/2} \]
Antiderivative was successfully verified.
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Rule 30
Rule 2168
Rubi steps
\begin {align*} \int x^{7/2} \tanh ^{-1}(\tanh (a+b x)) \, dx &=\frac {2}{9} x^{9/2} \tanh ^{-1}(\tanh (a+b x))-\frac {1}{9} (2 b) \int x^{9/2} \, dx\\ &=-\frac {4}{99} b x^{11/2}+\frac {2}{9} x^{9/2} \tanh ^{-1}(\tanh (a+b x))\\ \end {align*}
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Mathematica [A] time = 0.05, size = 23, normalized size = 0.85 \[ \frac {2}{99} x^{9/2} \left (11 \tanh ^{-1}(\tanh (a+b x))-2 b x\right ) \]
Antiderivative was successfully verified.
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fricas [A] time = 0.47, size = 18, normalized size = 0.67 \[ \frac {2}{99} \, {\left (9 \, b x^{5} + 11 \, a x^{4}\right )} \sqrt {x} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.18, size = 13, normalized size = 0.48 \[ \frac {2}{11} \, b x^{\frac {11}{2}} + \frac {2}{9} \, a x^{\frac {9}{2}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.24, size = 20, normalized size = 0.74 \[ -\frac {4 b \,x^{\frac {11}{2}}}{99}+\frac {2 x^{\frac {9}{2}} \arctanh \left (\tanh \left (b x +a \right )\right )}{9} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 0.33, size = 19, normalized size = 0.70 \[ -\frac {4}{99} \, b x^{\frac {11}{2}} + \frac {2}{9} \, x^{\frac {9}{2}} \operatorname {artanh}\left (\tanh \left (b x + a\right )\right ) \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [B] time = 1.24, size = 57, normalized size = 2.11 \[ \frac {x^{9/2}\,\ln \left (\frac {{\mathrm {e}}^{2\,a}\,{\mathrm {e}}^{2\,b\,x}}{{\mathrm {e}}^{2\,a}\,{\mathrm {e}}^{2\,b\,x}+1}\right )}{9}-\frac {4\,b\,x^{11/2}}{99}-\frac {x^{9/2}\,\ln \left (\frac {1}{{\mathrm {e}}^{2\,a}\,{\mathrm {e}}^{2\,b\,x}+1}\right )}{9} \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F(-1)] time = 0.00, size = 0, normalized size = 0.00 \[ \text {Timed out} \]
Verification of antiderivative is not currently implemented for this CAS.
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