Optimal. Leaf size=301 \[ -\frac {\sqrt {\frac {\pi }{2}} \left (\sinh \left (\frac {a}{2 b}\right )+\cosh \left (\frac {a}{2 b}\right )\right ) \sinh \left (\frac {1}{2} \cosh ^{-1}\left (d x^2+1\right )\right ) \text {erf}\left (\frac {\sqrt {a+b \cosh ^{-1}\left (d x^2+1\right )}}{\sqrt {2} \sqrt {b}}\right )}{15 b^{7/2} d x}+\frac {\sqrt {\frac {\pi }{2}} \left (\cosh \left (\frac {a}{2 b}\right )-\sinh \left (\frac {a}{2 b}\right )\right ) \sinh \left (\frac {1}{2} \cosh ^{-1}\left (d x^2+1\right )\right ) \text {erfi}\left (\frac {\sqrt {a+b \cosh ^{-1}\left (d x^2+1\right )}}{\sqrt {2} \sqrt {b}}\right )}{15 b^{7/2} d x}-\frac {\sqrt {d x^2} \sqrt {d x^2+2}}{15 b^3 d x \sqrt {a+b \cosh ^{-1}\left (d x^2+1\right )}}-\frac {x}{15 b^2 \left (a+b \cosh ^{-1}\left (d x^2+1\right )\right )^{3/2}}-\frac {d x^4+2 x^2}{5 b x \sqrt {d x^2} \sqrt {d x^2+2} \left (a+b \cosh ^{-1}\left (d x^2+1\right )\right )^{5/2}} \]
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Rubi [A] time = 0.08, antiderivative size = 301, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 2, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {5889, 5885} \[ -\frac {\sqrt {\frac {\pi }{2}} \left (\sinh \left (\frac {a}{2 b}\right )+\cosh \left (\frac {a}{2 b}\right )\right ) \sinh \left (\frac {1}{2} \cosh ^{-1}\left (d x^2+1\right )\right ) \text {Erf}\left (\frac {\sqrt {a+b \cosh ^{-1}\left (d x^2+1\right )}}{\sqrt {2} \sqrt {b}}\right )}{15 b^{7/2} d x}+\frac {\sqrt {\frac {\pi }{2}} \left (\cosh \left (\frac {a}{2 b}\right )-\sinh \left (\frac {a}{2 b}\right )\right ) \sinh \left (\frac {1}{2} \cosh ^{-1}\left (d x^2+1\right )\right ) \text {Erfi}\left (\frac {\sqrt {a+b \cosh ^{-1}\left (d x^2+1\right )}}{\sqrt {2} \sqrt {b}}\right )}{15 b^{7/2} d x}-\frac {x}{15 b^2 \left (a+b \cosh ^{-1}\left (d x^2+1\right )\right )^{3/2}}-\frac {\sqrt {d x^2} \sqrt {d x^2+2}}{15 b^3 d x \sqrt {a+b \cosh ^{-1}\left (d x^2+1\right )}}-\frac {d x^4+2 x^2}{5 b x \sqrt {d x^2} \sqrt {d x^2+2} \left (a+b \cosh ^{-1}\left (d x^2+1\right )\right )^{5/2}} \]
Antiderivative was successfully verified.
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Rule 5885
Rule 5889
Rubi steps
\begin {align*} \int \frac {1}{\left (a+b \cosh ^{-1}\left (1+d x^2\right )\right )^{7/2}} \, dx &=-\frac {2 x^2+d x^4}{5 b x \sqrt {d x^2} \sqrt {2+d x^2} \left (a+b \cosh ^{-1}\left (1+d x^2\right )\right )^{5/2}}-\frac {x}{15 b^2 \left (a+b \cosh ^{-1}\left (1+d x^2\right )\right )^{3/2}}+\frac {\int \frac {1}{\left (a+b \cosh ^{-1}\left (1+d x^2\right )\right )^{3/2}} \, dx}{15 b^2}\\ &=-\frac {2 x^2+d x^4}{5 b x \sqrt {d x^2} \sqrt {2+d x^2} \left (a+b \cosh ^{-1}\left (1+d x^2\right )\right )^{5/2}}-\frac {x}{15 b^2 \left (a+b \cosh ^{-1}\left (1+d x^2\right )\right )^{3/2}}-\frac {\sqrt {d x^2} \sqrt {2+d x^2}}{15 b^3 d x \sqrt {a+b \cosh ^{-1}\left (1+d x^2\right )}}+\frac {\sqrt {\frac {\pi }{2}} \text {erfi}\left (\frac {\sqrt {a+b \cosh ^{-1}\left (1+d x^2\right )}}{\sqrt {2} \sqrt {b}}\right ) \left (\cosh \left (\frac {a}{2 b}\right )-\sinh \left (\frac {a}{2 b}\right )\right ) \sinh \left (\frac {1}{2} \cosh ^{-1}\left (1+d x^2\right )\right )}{15 b^{7/2} d x}-\frac {\sqrt {\frac {\pi }{2}} \text {erf}\left (\frac {\sqrt {a+b \cosh ^{-1}\left (1+d x^2\right )}}{\sqrt {2} \sqrt {b}}\right ) \left (\cosh \left (\frac {a}{2 b}\right )+\sinh \left (\frac {a}{2 b}\right )\right ) \sinh \left (\frac {1}{2} \cosh ^{-1}\left (1+d x^2\right )\right )}{15 b^{7/2} d x}\\ \end {align*}
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Mathematica [A] time = 1.34, size = 291, normalized size = 0.97 \[ -\frac {x \sinh \left (\frac {1}{2} \cosh ^{-1}\left (d x^2+1\right )\right ) \left (4 \sqrt {b} \left (\cosh \left (\frac {1}{2} \cosh ^{-1}\left (d x^2+1\right )\right ) \left (\left (a+b \cosh ^{-1}\left (d x^2+1\right )\right )^2+3 b^2\right )+b \sinh \left (\frac {1}{2} \cosh ^{-1}\left (d x^2+1\right )\right ) \left (a+b \cosh ^{-1}\left (d x^2+1\right )\right )\right )+\sqrt {2 \pi } \left (\sinh \left (\frac {a}{2 b}\right )+\cosh \left (\frac {a}{2 b}\right )\right ) \left (a+b \cosh ^{-1}\left (d x^2+1\right )\right )^{5/2} \text {erf}\left (\frac {\sqrt {a+b \cosh ^{-1}\left (d x^2+1\right )}}{\sqrt {2} \sqrt {b}}\right )+\sqrt {2 \pi } \left (\sinh \left (\frac {a}{2 b}\right )-\cosh \left (\frac {a}{2 b}\right )\right ) \left (a+b \cosh ^{-1}\left (d x^2+1\right )\right )^{5/2} \text {erfi}\left (\frac {\sqrt {a+b \cosh ^{-1}\left (d x^2+1\right )}}{\sqrt {2} \sqrt {b}}\right )\right )}{30 b^{7/2} \sqrt {d x^2} \sqrt {\frac {d x^2}{d x^2+2}} \sqrt {d x^2+2} \left (a+b \cosh ^{-1}\left (d x^2+1\right )\right )^{5/2}} \]
Warning: Unable to verify antiderivative.
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fricas [F(-2)] time = 0.00, size = 0, normalized size = 0.00 \[ \text {Exception raised: TypeError} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [F(-2)] time = 0.00, size = 0, normalized size = 0.00 \[ \text {Exception raised: TypeError} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [F] time = 0.07, size = 0, normalized size = 0.00 \[ \int \frac {1}{\left (a +b \,\mathrm {arccosh}\left (d \,x^{2}+1\right )\right )^{\frac {7}{2}}}\, dx \]
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 \[ \int \frac {1}{{\left (b \operatorname {arcosh}\left (d x^{2} + 1\right ) + a\right )}^{\frac {7}{2}}}\,{d x} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.00 \[ \int \frac {1}{{\left (a+b\,\mathrm {acosh}\left (d\,x^2+1\right )\right )}^{7/2}} \,d x \]
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 \[ \int \frac {1}{\left (a + b \operatorname {acosh}{\left (d x^{2} + 1 \right )}\right )^{\frac {7}{2}}}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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