Optimal. Leaf size=169 \[ -\frac{c^4 (6-7 a x) \left (1-a^2 x^2\right )^{7/2}}{42 a^8 x^7}+\frac{c^4 (24-35 a x) \left (1-a^2 x^2\right )^{5/2}}{120 a^6 x^5}-\frac{c^4 (16-35 a x) \left (1-a^2 x^2\right )^{3/2}}{48 a^4 x^3}+\frac{c^4 (35 a x+16) \sqrt{1-a^2 x^2}}{16 a^2 x}-\frac{35 c^4 \tanh ^{-1}\left (\sqrt{1-a^2 x^2}\right )}{16 a}+\frac{c^4 \sin ^{-1}(a x)}{a} \]
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Rubi [A] time = 0.232407, antiderivative size = 169, normalized size of antiderivative = 1., number of steps used = 11, number of rules used = 9, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.409, Rules used = {6157, 6149, 811, 813, 844, 216, 266, 63, 208} \[ -\frac{c^4 (6-7 a x) \left (1-a^2 x^2\right )^{7/2}}{42 a^8 x^7}+\frac{c^4 (24-35 a x) \left (1-a^2 x^2\right )^{5/2}}{120 a^6 x^5}-\frac{c^4 (16-35 a x) \left (1-a^2 x^2\right )^{3/2}}{48 a^4 x^3}+\frac{c^4 (35 a x+16) \sqrt{1-a^2 x^2}}{16 a^2 x}-\frac{35 c^4 \tanh ^{-1}\left (\sqrt{1-a^2 x^2}\right )}{16 a}+\frac{c^4 \sin ^{-1}(a x)}{a} \]
Antiderivative was successfully verified.
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Rule 6157
Rule 6149
Rule 811
Rule 813
Rule 844
Rule 216
Rule 266
Rule 63
Rule 208
Rubi steps
\begin{align*} \int e^{-\tanh ^{-1}(a x)} \left (c-\frac{c}{a^2 x^2}\right )^4 \, dx &=\frac{c^4 \int \frac{e^{-\tanh ^{-1}(a x)} \left (1-a^2 x^2\right )^4}{x^8} \, dx}{a^8}\\ &=\frac{c^4 \int \frac{(1-a x) \left (1-a^2 x^2\right )^{7/2}}{x^8} \, dx}{a^8}\\ &=-\frac{c^4 (6-7 a x) \left (1-a^2 x^2\right )^{7/2}}{42 a^8 x^7}-\frac{c^4 \int \frac{\left (12 a^2-14 a^3 x\right ) \left (1-a^2 x^2\right )^{5/2}}{x^6} \, dx}{12 a^8}\\ &=\frac{c^4 (24-35 a x) \left (1-a^2 x^2\right )^{5/2}}{120 a^6 x^5}-\frac{c^4 (6-7 a x) \left (1-a^2 x^2\right )^{7/2}}{42 a^8 x^7}+\frac{c^4 \int \frac{\left (96 a^4-140 a^5 x\right ) \left (1-a^2 x^2\right )^{3/2}}{x^4} \, dx}{96 a^8}\\ &=-\frac{c^4 (16-35 a x) \left (1-a^2 x^2\right )^{3/2}}{48 a^4 x^3}+\frac{c^4 (24-35 a x) \left (1-a^2 x^2\right )^{5/2}}{120 a^6 x^5}-\frac{c^4 (6-7 a x) \left (1-a^2 x^2\right )^{7/2}}{42 a^8 x^7}-\frac{c^4 \int \frac{\left (384 a^6-840 a^7 x\right ) \sqrt{1-a^2 x^2}}{x^2} \, dx}{384 a^8}\\ &=\frac{c^4 (16+35 a x) \sqrt{1-a^2 x^2}}{16 a^2 x}-\frac{c^4 (16-35 a x) \left (1-a^2 x^2\right )^{3/2}}{48 a^4 x^3}+\frac{c^4 (24-35 a x) \left (1-a^2 x^2\right )^{5/2}}{120 a^6 x^5}-\frac{c^4 (6-7 a x) \left (1-a^2 x^2\right )^{7/2}}{42 a^8 x^7}+\frac{c^4 \int \frac{1680 a^7+768 a^8 x}{x \sqrt{1-a^2 x^2}} \, dx}{768 a^8}\\ &=\frac{c^4 (16+35 a x) \sqrt{1-a^2 x^2}}{16 a^2 x}-\frac{c^4 (16-35 a x) \left (1-a^2 x^2\right )^{3/2}}{48 a^4 x^3}+\frac{c^4 (24-35 a x) \left (1-a^2 x^2\right )^{5/2}}{120 a^6 x^5}-\frac{c^4 (6-7 a x) \left (1-a^2 x^2\right )^{7/2}}{42 a^8 x^7}+c^4 \int \frac{1}{\sqrt{1-a^2 x^2}} \, dx+\frac{\left (35 c^4\right ) \int \frac{1}{x \sqrt{1-a^2 x^2}} \, dx}{16 a}\\ &=\frac{c^4 (16+35 a x) \sqrt{1-a^2 x^2}}{16 a^2 x}-\frac{c^4 (16-35 a x) \left (1-a^2 x^2\right )^{3/2}}{48 a^4 x^3}+\frac{c^4 (24-35 a x) \left (1-a^2 x^2\right )^{5/2}}{120 a^6 x^5}-\frac{c^4 (6-7 a x) \left (1-a^2 x^2\right )^{7/2}}{42 a^8 x^7}+\frac{c^4 \sin ^{-1}(a x)}{a}+\frac{\left (35 c^4\right ) \operatorname{Subst}\left (\int \frac{1}{x \sqrt{1-a^2 x}} \, dx,x,x^2\right )}{32 a}\\ &=\frac{c^4 (16+35 a x) \sqrt{1-a^2 x^2}}{16 a^2 x}-\frac{c^4 (16-35 a x) \left (1-a^2 x^2\right )^{3/2}}{48 a^4 x^3}+\frac{c^4 (24-35 a x) \left (1-a^2 x^2\right )^{5/2}}{120 a^6 x^5}-\frac{c^4 (6-7 a x) \left (1-a^2 x^2\right )^{7/2}}{42 a^8 x^7}+\frac{c^4 \sin ^{-1}(a x)}{a}-\frac{\left (35 c^4\right ) \operatorname{Subst}\left (\int \frac{1}{\frac{1}{a^2}-\frac{x^2}{a^2}} \, dx,x,\sqrt{1-a^2 x^2}\right )}{16 a^3}\\ &=\frac{c^4 (16+35 a x) \sqrt{1-a^2 x^2}}{16 a^2 x}-\frac{c^4 (16-35 a x) \left (1-a^2 x^2\right )^{3/2}}{48 a^4 x^3}+\frac{c^4 (24-35 a x) \left (1-a^2 x^2\right )^{5/2}}{120 a^6 x^5}-\frac{c^4 (6-7 a x) \left (1-a^2 x^2\right )^{7/2}}{42 a^8 x^7}+\frac{c^4 \sin ^{-1}(a x)}{a}-\frac{35 c^4 \tanh ^{-1}\left (\sqrt{1-a^2 x^2}\right )}{16 a}\\ \end{align*}
Mathematica [C] time = 0.0276227, size = 70, normalized size = 0.41 \[ \frac{c^4 \left (7 a^7 \left (1-a^2 x^2\right )^{9/2} \text{Hypergeometric2F1}\left (4,\frac{9}{2},\frac{11}{2},1-a^2 x^2\right )-\frac{9 \text{Hypergeometric2F1}\left (-\frac{7}{2},-\frac{7}{2},-\frac{5}{2},a^2 x^2\right )}{x^7}\right )}{63 a^8} \]
Warning: Unable to verify antiderivative.
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Maple [A] time = 0.085, size = 249, normalized size = 1.5 \begin{align*} -{\frac{5\,{c}^{4}}{8\,{a}^{5}{x}^{4}} \left ( -{a}^{2}{x}^{2}+1 \right ) ^{{\frac{3}{2}}}}+{\frac{19\,{c}^{4}}{16\,{x}^{2}{a}^{3}} \left ( -{a}^{2}{x}^{2}+1 \right ) ^{{\frac{3}{2}}}}+{\frac{35\,{c}^{4}}{16\,a}\sqrt{-{a}^{2}{x}^{2}+1}}-{\frac{35\,{c}^{4}}{16\,a}{\it Artanh} \left ({\frac{1}{\sqrt{-{a}^{2}{x}^{2}+1}}} \right ) }+{\frac{{c}^{4}}{{a}^{2}x} \left ( -{a}^{2}{x}^{2}+1 \right ) ^{{\frac{3}{2}}}}+{c}^{4}x\sqrt{-{a}^{2}{x}^{2}+1}+{{c}^{4}\arctan \left ({x\sqrt{{a}^{2}}{\frac{1}{\sqrt{-{a}^{2}{x}^{2}+1}}}} \right ){\frac{1}{\sqrt{{a}^{2}}}}}-{\frac{{c}^{4}}{7\,{a}^{8}{x}^{7}} \left ( -{a}^{2}{x}^{2}+1 \right ) ^{{\frac{3}{2}}}}+{\frac{17\,{c}^{4}}{35\,{a}^{6}{x}^{5}} \left ( -{a}^{2}{x}^{2}+1 \right ) ^{{\frac{3}{2}}}}-{\frac{71\,{c}^{4}}{105\,{a}^{4}{x}^{3}} \left ( -{a}^{2}{x}^{2}+1 \right ) ^{{\frac{3}{2}}}}+{\frac{{c}^{4}}{6\,{a}^{7}{x}^{6}} \left ( -{a}^{2}{x}^{2}+1 \right ) ^{{\frac{3}{2}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} c^{4}{\left (\frac{\arcsin \left (a x\right )}{a} + \frac{\sqrt{-a^{2} x^{2} + 1}}{a}\right )} - \int \frac{{\left (4 \, a^{6} c^{4} x^{6} - 6 \, a^{4} c^{4} x^{4} + 4 \, a^{2} c^{4} x^{2} - c^{4}\right )} \sqrt{a x + 1} \sqrt{-a x + 1}}{a^{9} x^{9} + a^{8} x^{8}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.98607, size = 413, normalized size = 2.44 \begin{align*} -\frac{3360 \, a^{7} c^{4} x^{7} \arctan \left (\frac{\sqrt{-a^{2} x^{2} + 1} - 1}{a x}\right ) - 3675 \, a^{7} c^{4} x^{7} \log \left (\frac{\sqrt{-a^{2} x^{2} + 1} - 1}{x}\right ) - 1680 \, a^{7} c^{4} x^{7} -{\left (1680 \, a^{7} c^{4} x^{7} + 2816 \, a^{6} c^{4} x^{6} + 3045 \, a^{5} c^{4} x^{5} - 1952 \, a^{4} c^{4} x^{4} - 1330 \, a^{3} c^{4} x^{3} + 1056 \, a^{2} c^{4} x^{2} + 280 \, a c^{4} x - 240 \, c^{4}\right )} \sqrt{-a^{2} x^{2} + 1}}{1680 \, a^{8} x^{7}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [C] time = 25.6365, size = 1110, normalized size = 6.57 \begin{align*} \text{result too large to display} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] time = 1.28195, size = 680, normalized size = 4.02 \begin{align*} \frac{{\left (15 \, c^{4} - \frac{35 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )} c^{4}}{a^{2} x} - \frac{189 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{2} c^{4}}{a^{4} x^{2}} + \frac{525 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{3} c^{4}}{a^{6} x^{3}} + \frac{1295 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{4} c^{4}}{a^{8} x^{4}} - \frac{4935 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{5} c^{4}}{a^{10} x^{5}} - \frac{9765 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{6} c^{4}}{a^{12} x^{6}}\right )} a^{14} x^{7}}{13440 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{7}{\left | a \right |}} + \frac{c^{4} \arcsin \left (a x\right ) \mathrm{sgn}\left (a\right )}{{\left | a \right |}} - \frac{35 \, c^{4} \log \left (\frac{{\left | -2 \, \sqrt{-a^{2} x^{2} + 1}{\left | a \right |} - 2 \, a \right |}}{2 \, a^{2}{\left | x \right |}}\right )}{16 \,{\left | a \right |}} + \frac{\sqrt{-a^{2} x^{2} + 1} c^{4}}{a} + \frac{\frac{9765 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )} a^{4} c^{4}}{x} + \frac{4935 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{2} a^{2} c^{4}}{x^{2}} - \frac{1295 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{3} c^{4}}{x^{3}} - \frac{525 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{4} c^{4}}{a^{2} x^{4}} + \frac{189 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{5} c^{4}}{a^{4} x^{5}} + \frac{35 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{6} c^{4}}{a^{6} x^{6}} - \frac{15 \,{\left (\sqrt{-a^{2} x^{2} + 1}{\left | a \right |} + a\right )}^{7} c^{4}}{a^{8} x^{7}}}{13440 \, a^{6}{\left | a \right |}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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