Optimal. Leaf size=87 \[ -\frac {\sqrt {b x^2+c x^4}}{4 b x^5}+\frac {3 c \sqrt {b x^2+c x^4}}{8 b^2 x^3}-\frac {3 c^2 \tanh ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {b x^2+c x^4}}\right )}{8 b^{5/2}} \]
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Rubi [A]
time = 0.06, antiderivative size = 87, normalized size of antiderivative = 1.00, 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, 2050, 2033,
212} \begin {gather*} -\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} \end {gather*}
Antiderivative was successfully verified.
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Rule 3
Rule 212
Rule 2033
Rule 2050
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 ) \text {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*}
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Mathematica [A]
time = 0.02, size = 91, normalized size = 1.05 \begin {gather*} \frac {\sqrt {b} \left (-2 b^2+b c x^2+3 c^2 x^4\right )-3 c^2 x^4 \sqrt {b+c x^2} \tanh ^{-1}\left (\frac {\sqrt {b+c x^2}}{\sqrt {b}}\right )}{8 b^{5/2} x^3 \sqrt {x^2 \left (b+c x^2\right )}} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.14, size = 94, normalized size = 1.08
method | result | size |
default | \(-\frac {\sqrt {c \,x^{2}+b}\, \left (3 \ln \left (\frac {2 b +2 \sqrt {b}\, \sqrt {c \,x^{2}+b}}{x}\right ) b \,c^{2} x^{4}-3 b^{\frac {3}{2}} \sqrt {c \,x^{2}+b}\, c \,x^{2}+2 \sqrt {c \,x^{2}+b}\, b^{\frac {5}{2}}\right )}{8 x^{3} \sqrt {c \,x^{4}+b \,x^{2}}\, b^{\frac {7}{2}}}\) | \(94\) |
risch | \(-\frac {\left (c \,x^{2}+b \right ) \left (-3 c \,x^{2}+2 b \right )}{8 b^{2} x^{3} \sqrt {x^{2} \left (c \,x^{2}+b \right )}}-\frac {3 c^{2} \ln \left (\frac {2 b +2 \sqrt {b}\, \sqrt {c \,x^{2}+b}}{x}\right ) x \sqrt {c \,x^{2}+b}}{8 b^{\frac {5}{2}} \sqrt {x^{2} \left (c \,x^{2}+b \right )}}\) | \(94\) |
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 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.37, size = 163, normalized size = 1.87 \begin {gather*} \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 {gather*}
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 \begin {gather*} \int \frac {1}{x^{4} \sqrt {x^{2} \left (b + c x^{2}\right )}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 4.51, size = 79, normalized size = 0.91 \begin {gather*} \frac {\frac {3 \, c^{3} \arctan \left (\frac {\sqrt {c x^{2} + b}}{\sqrt {-b}}\right )}{\sqrt {-b} b^{2}} + \frac {3 \, {\left (c x^{2} + b\right )}^{\frac {3}{2}} c^{3} - 5 \, \sqrt {c x^{2} + b} b c^{3}}{b^{2} c^{2} x^{4}}}{8 \, c \mathrm {sgn}\left (x\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [F]
time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int \frac {1}{x^4\,\sqrt {c\,x^4+b\,x^2}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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