Optimal. Leaf size=87 \[ -\frac{3 c^2 \tanh ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{b x^2+c x^4}}\right )}{8 b^{5/2}}+\frac{3 c \sqrt{b x^2+c x^4}}{8 b^2 x^3}-\frac{\sqrt{b x^2+c x^4}}{4 b x^5} \]
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Rubi [A] time = 0.0995023, antiderivative size = 87, normalized size of antiderivative = 1., number of steps used = 5, number of rules used = 4, integrand size = 28, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.143, Rules used = {3, 2025, 2008, 206} \[ -\frac{3 c^2 \tanh ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{b x^2+c x^4}}\right )}{8 b^{5/2}}+\frac{3 c \sqrt{b x^2+c x^4}}{8 b^2 x^3}-\frac{\sqrt{b x^2+c x^4}}{4 b x^5} \]
Antiderivative was successfully verified.
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Rule 3
Rule 2025
Rule 2008
Rule 206
Rubi steps
\begin{align*} \int \frac{1}{x^4 \sqrt{2+2 a-2 (1+a)+b x^2+c x^4}} \, dx &=\int \frac{1}{x^4 \sqrt{b x^2+c x^4}} \, dx\\ &=-\frac{\sqrt{b x^2+c x^4}}{4 b x^5}-\frac{(3 c) \int \frac{1}{x^2 \sqrt{b x^2+c x^4}} \, dx}{4 b}\\ &=-\frac{\sqrt{b x^2+c x^4}}{4 b x^5}+\frac{3 c \sqrt{b x^2+c x^4}}{8 b^2 x^3}+\frac{\left (3 c^2\right ) \int \frac{1}{\sqrt{b x^2+c x^4}} \, dx}{8 b^2}\\ &=-\frac{\sqrt{b x^2+c x^4}}{4 b x^5}+\frac{3 c \sqrt{b x^2+c x^4}}{8 b^2 x^3}-\frac{\left (3 c^2\right ) \operatorname{Subst}\left (\int \frac{1}{1-b x^2} \, dx,x,\frac{x}{\sqrt{b x^2+c x^4}}\right )}{8 b^2}\\ &=-\frac{\sqrt{b x^2+c x^4}}{4 b x^5}+\frac{3 c \sqrt{b x^2+c x^4}}{8 b^2 x^3}-\frac{3 c^2 \tanh ^{-1}\left (\frac{\sqrt{b} x}{\sqrt{b x^2+c x^4}}\right )}{8 b^{5/2}}\\ \end{align*}
Mathematica [C] time = 0.0119407, size = 44, normalized size = 0.51 \[ -\frac{c^2 \sqrt{x^2 \left (b+c x^2\right )} \, _2F_1\left (\frac{1}{2},3;\frac{3}{2};\frac{c x^2}{b}+1\right )}{b^3 x} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.047, size = 94, normalized size = 1.1 \begin{align*} -{\frac{1}{8\,{x}^{3}}\sqrt{c{x}^{2}+b} \left ( 3\,\ln \left ( 2\,{\frac{\sqrt{b}\sqrt{c{x}^{2}+b}+b}{x}} \right ){x}^{4}b{c}^{2}-3\,\sqrt{c{x}^{2}+b}{b}^{3/2}{x}^{2}c+2\,\sqrt{c{x}^{2}+b}{b}^{5/2} \right ){\frac{1}{\sqrt{c{x}^{4}+b{x}^{2}}}}{b}^{-{\frac{7}{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*} \int \frac{1}{\sqrt{c x^{4} + b x^{2}} x^{4}}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 1.57034, size = 366, normalized size = 4.21 \begin{align*} \left [\frac{3 \, \sqrt{b} c^{2} x^{5} \log \left (-\frac{c x^{3} + 2 \, b x - 2 \, \sqrt{c x^{4} + b x^{2}} \sqrt{b}}{x^{3}}\right ) + 2 \, \sqrt{c x^{4} + b x^{2}}{\left (3 \, b c x^{2} - 2 \, b^{2}\right )}}{16 \, b^{3} x^{5}}, \frac{3 \, \sqrt{-b} c^{2} x^{5} \arctan \left (\frac{\sqrt{c x^{4} + b x^{2}} \sqrt{-b}}{c x^{3} + b x}\right ) + \sqrt{c x^{4} + b x^{2}}{\left (3 \, b c x^{2} - 2 \, b^{2}\right )}}{8 \, b^{3} x^{5}}\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{1}{x^{4} \sqrt{x^{2} \left (b + c x^{2}\right )}}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: NotImplementedError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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