Optimal. Leaf size=104 \[ -\frac{a^2 \tanh ^{-1}\left (\frac{\sqrt{b} \sqrt{c+d x^4}}{\sqrt{b c-a d}}\right )}{2 b^{5/2} \sqrt{b c-a d}}-\frac{\sqrt{c+d x^4} (a d+b c)}{2 b^2 d^2}+\frac{\left (c+d x^4\right )^{3/2}}{6 b d^2} \]
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Rubi [A] time = 0.111793, antiderivative size = 104, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 4, integrand size = 24, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.167, Rules used = {446, 88, 63, 208} \[ -\frac{a^2 \tanh ^{-1}\left (\frac{\sqrt{b} \sqrt{c+d x^4}}{\sqrt{b c-a d}}\right )}{2 b^{5/2} \sqrt{b c-a d}}-\frac{\sqrt{c+d x^4} (a d+b c)}{2 b^2 d^2}+\frac{\left (c+d x^4\right )^{3/2}}{6 b d^2} \]
Antiderivative was successfully verified.
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Rule 446
Rule 88
Rule 63
Rule 208
Rubi steps
\begin{align*} \int \frac{x^{11}}{\left (a+b x^4\right ) \sqrt{c+d x^4}} \, dx &=\frac{1}{4} \operatorname{Subst}\left (\int \frac{x^2}{(a+b x) \sqrt{c+d x}} \, dx,x,x^4\right )\\ &=\frac{1}{4} \operatorname{Subst}\left (\int \left (\frac{-b c-a d}{b^2 d \sqrt{c+d x}}+\frac{a^2}{b^2 (a+b x) \sqrt{c+d x}}+\frac{\sqrt{c+d x}}{b d}\right ) \, dx,x,x^4\right )\\ &=-\frac{(b c+a d) \sqrt{c+d x^4}}{2 b^2 d^2}+\frac{\left (c+d x^4\right )^{3/2}}{6 b d^2}+\frac{a^2 \operatorname{Subst}\left (\int \frac{1}{(a+b x) \sqrt{c+d x}} \, dx,x,x^4\right )}{4 b^2}\\ &=-\frac{(b c+a d) \sqrt{c+d x^4}}{2 b^2 d^2}+\frac{\left (c+d x^4\right )^{3/2}}{6 b d^2}+\frac{a^2 \operatorname{Subst}\left (\int \frac{1}{a-\frac{b c}{d}+\frac{b x^2}{d}} \, dx,x,\sqrt{c+d x^4}\right )}{2 b^2 d}\\ &=-\frac{(b c+a d) \sqrt{c+d x^4}}{2 b^2 d^2}+\frac{\left (c+d x^4\right )^{3/2}}{6 b d^2}-\frac{a^2 \tanh ^{-1}\left (\frac{\sqrt{b} \sqrt{c+d x^4}}{\sqrt{b c-a d}}\right )}{2 b^{5/2} \sqrt{b c-a d}}\\ \end{align*}
Mathematica [A] time = 0.181091, size = 91, normalized size = 0.88 \[ \frac{\sqrt{c+d x^4} \left (-3 a d-2 b c+b d x^4\right )}{6 b^2 d^2}-\frac{a^2 \tanh ^{-1}\left (\frac{\sqrt{b} \sqrt{c+d x^4}}{\sqrt{b c-a d}}\right )}{2 b^{5/2} \sqrt{b c-a d}} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.033, size = 378, normalized size = 3.6 \begin{align*}{\frac{{x}^{4}}{6\,bd}\sqrt{d{x}^{4}+c}}-{\frac{c}{3\,b{d}^{2}}\sqrt{d{x}^{4}+c}}-{\frac{a}{2\,{b}^{2}d}\sqrt{d{x}^{4}+c}}-{\frac{{a}^{2}}{4\,{b}^{3}}\ln \left ({ \left ( -2\,{\frac{ad-bc}{b}}+2\,{\frac{d\sqrt{-ab}}{b} \left ({x}^{2}-{\frac{\sqrt{-ab}}{b}} \right ) }+2\,\sqrt{-{\frac{ad-bc}{b}}}\sqrt{ \left ({x}^{2}-{\frac{\sqrt{-ab}}{b}} \right ) ^{2}d+2\,{\frac{d\sqrt{-ab}}{b} \left ({x}^{2}-{\frac{\sqrt{-ab}}{b}} \right ) }-{\frac{ad-bc}{b}}} \right ) \left ({x}^{2}-{\frac{1}{b}\sqrt{-ab}} \right ) ^{-1}} \right ){\frac{1}{\sqrt{-{\frac{ad-bc}{b}}}}}}-{\frac{{a}^{2}}{4\,{b}^{3}}\ln \left ({ \left ( -2\,{\frac{ad-bc}{b}}-2\,{\frac{d\sqrt{-ab}}{b} \left ({x}^{2}+{\frac{\sqrt{-ab}}{b}} \right ) }+2\,\sqrt{-{\frac{ad-bc}{b}}}\sqrt{ \left ({x}^{2}+{\frac{\sqrt{-ab}}{b}} \right ) ^{2}d-2\,{\frac{d\sqrt{-ab}}{b} \left ({x}^{2}+{\frac{\sqrt{-ab}}{b}} \right ) }-{\frac{ad-bc}{b}}} \right ) \left ({x}^{2}+{\frac{1}{b}\sqrt{-ab}} \right ) ^{-1}} \right ){\frac{1}{\sqrt{-{\frac{ad-bc}{b}}}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.72938, size = 594, normalized size = 5.71 \begin{align*} \left [\frac{3 \, \sqrt{b^{2} c - a b d} a^{2} d^{2} \log \left (\frac{b d x^{4} + 2 \, b c - a d - 2 \, \sqrt{d x^{4} + c} \sqrt{b^{2} c - a b d}}{b x^{4} + a}\right ) - 2 \,{\left (2 \, b^{3} c^{2} + a b^{2} c d - 3 \, a^{2} b d^{2} -{\left (b^{3} c d - a b^{2} d^{2}\right )} x^{4}\right )} \sqrt{d x^{4} + c}}{12 \,{\left (b^{4} c d^{2} - a b^{3} d^{3}\right )}}, \frac{3 \, \sqrt{-b^{2} c + a b d} a^{2} d^{2} \arctan \left (\frac{\sqrt{d x^{4} + c} \sqrt{-b^{2} c + a b d}}{b d x^{4} + b c}\right ) -{\left (2 \, b^{3} c^{2} + a b^{2} c d - 3 \, a^{2} b d^{2} -{\left (b^{3} c d - a b^{2} d^{2}\right )} x^{4}\right )} \sqrt{d x^{4} + c}}{6 \,{\left (b^{4} c d^{2} - a b^{3} d^{3}\right )}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int \frac{x^{11}}{\left (a + b x^{4}\right ) \sqrt{c + d x^{4}}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.09915, size = 143, normalized size = 1.38 \begin{align*} \frac{a^{2} \arctan \left (\frac{\sqrt{d x^{4} + c} b}{\sqrt{-b^{2} c + a b d}}\right )}{2 \, \sqrt{-b^{2} c + a b d} b^{2}} + \frac{{\left (d x^{4} + c\right )}^{\frac{3}{2}} b^{2} d^{4} - 3 \, \sqrt{d x^{4} + c} b^{2} c d^{4} - 3 \, \sqrt{d x^{4} + c} a b d^{5}}{6 \, b^{3} d^{6}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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