Optimal. Leaf size=124 \[ -\frac {A \sqrt {a+b x^2+c x^4}}{4 a x^4}+\frac {(3 A b-4 a B) \sqrt {a+b x^2+c x^4}}{8 a^2 x^2}-\frac {\left (3 A b^2-4 a b B-4 a A c\right ) \tanh ^{-1}\left (\frac {2 a+b x^2}{2 \sqrt {a} \sqrt {a+b x^2+c x^4}}\right )}{16 a^{5/2}} \]
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Rubi [A]
time = 0.10, antiderivative size = 124, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 5, integrand size = 27, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.185, Rules used = {1265, 848, 820,
738, 212} \begin {gather*} -\frac {\left (-4 a A c-4 a b B+3 A b^2\right ) \tanh ^{-1}\left (\frac {2 a+b x^2}{2 \sqrt {a} \sqrt {a+b x^2+c x^4}}\right )}{16 a^{5/2}}+\frac {(3 A b-4 a B) \sqrt {a+b x^2+c x^4}}{8 a^2 x^2}-\frac {A \sqrt {a+b x^2+c x^4}}{4 a x^4} \end {gather*}
Antiderivative was successfully verified.
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Rule 212
Rule 738
Rule 820
Rule 848
Rule 1265
Rubi steps
\begin {align*} \int \frac {A+B x^2}{x^5 \sqrt {a+b x^2+c x^4}} \, dx &=\frac {1}{2} \text {Subst}\left (\int \frac {A+B x}{x^3 \sqrt {a+b x+c x^2}} \, dx,x,x^2\right )\\ &=-\frac {A \sqrt {a+b x^2+c x^4}}{4 a x^4}-\frac {\text {Subst}\left (\int \frac {\frac {1}{2} (3 A b-4 a B)+A c x}{x^2 \sqrt {a+b x+c x^2}} \, dx,x,x^2\right )}{4 a}\\ &=-\frac {A \sqrt {a+b x^2+c x^4}}{4 a x^4}+\frac {(3 A b-4 a B) \sqrt {a+b x^2+c x^4}}{8 a^2 x^2}+\frac {\left (3 A b^2-4 a b B-4 a A c\right ) \text {Subst}\left (\int \frac {1}{x \sqrt {a+b x+c x^2}} \, dx,x,x^2\right )}{16 a^2}\\ &=-\frac {A \sqrt {a+b x^2+c x^4}}{4 a x^4}+\frac {(3 A b-4 a B) \sqrt {a+b x^2+c x^4}}{8 a^2 x^2}-\frac {\left (3 A b^2-4 a b B-4 a A c\right ) \text {Subst}\left (\int \frac {1}{4 a-x^2} \, dx,x,\frac {2 a+b x^2}{\sqrt {a+b x^2+c x^4}}\right )}{8 a^2}\\ &=-\frac {A \sqrt {a+b x^2+c x^4}}{4 a x^4}+\frac {(3 A b-4 a B) \sqrt {a+b x^2+c x^4}}{8 a^2 x^2}-\frac {\left (3 A b^2-4 a b B-4 a A c\right ) \tanh ^{-1}\left (\frac {2 a+b x^2}{2 \sqrt {a} \sqrt {a+b x^2+c x^4}}\right )}{16 a^{5/2}}\\ \end {align*}
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Mathematica [A]
time = 0.54, size = 145, normalized size = 1.17 \begin {gather*} \frac {\sqrt {a} \sqrt {a+b x^2+c x^4} \left (3 A b x^2-2 a \left (A+2 B x^2\right )\right )+3 A b^2 x^4 \tanh ^{-1}\left (\frac {\sqrt {c} x^2-\sqrt {a+b x^2+c x^4}}{\sqrt {a}}\right )+4 a (b B+A c) x^4 \tanh ^{-1}\left (\frac {-\sqrt {c} x^2+\sqrt {a+b x^2+c x^4}}{\sqrt {a}}\right )}{8 a^{5/2} x^4} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.07, size = 194, normalized size = 1.56
method | result | size |
risch | \(-\frac {\sqrt {c \,x^{4}+b \,x^{2}+a}\, \left (-3 A b \,x^{2}+4 a B \,x^{2}+2 a A \right )}{8 a^{2} x^{4}}+\frac {\ln \left (\frac {2 a +b \,x^{2}+2 \sqrt {a}\, \sqrt {c \,x^{4}+b \,x^{2}+a}}{x^{2}}\right ) c A}{4 a^{\frac {3}{2}}}-\frac {3 \ln \left (\frac {2 a +b \,x^{2}+2 \sqrt {a}\, \sqrt {c \,x^{4}+b \,x^{2}+a}}{x^{2}}\right ) A \,b^{2}}{16 a^{\frac {5}{2}}}+\frac {\ln \left (\frac {2 a +b \,x^{2}+2 \sqrt {a}\, \sqrt {c \,x^{4}+b \,x^{2}+a}}{x^{2}}\right ) b B}{4 a^{\frac {3}{2}}}\) | \(165\) |
default | \(A \left (-\frac {\sqrt {c \,x^{4}+b \,x^{2}+a}}{4 a \,x^{4}}+\frac {3 b \sqrt {c \,x^{4}+b \,x^{2}+a}}{8 a^{2} x^{2}}-\frac {3 b^{2} \ln \left (\frac {2 a +b \,x^{2}+2 \sqrt {a}\, \sqrt {c \,x^{4}+b \,x^{2}+a}}{x^{2}}\right )}{16 a^{\frac {5}{2}}}+\frac {c \ln \left (\frac {2 a +b \,x^{2}+2 \sqrt {a}\, \sqrt {c \,x^{4}+b \,x^{2}+a}}{x^{2}}\right )}{4 a^{\frac {3}{2}}}\right )+B \left (-\frac {\sqrt {c \,x^{4}+b \,x^{2}+a}}{2 a \,x^{2}}+\frac {b \ln \left (\frac {2 a +b \,x^{2}+2 \sqrt {a}\, \sqrt {c \,x^{4}+b \,x^{2}+a}}{x^{2}}\right )}{4 a^{\frac {3}{2}}}\right )\) | \(194\) |
elliptic | \(-\frac {A \sqrt {c \,x^{4}+b \,x^{2}+a}}{4 a \,x^{4}}+\frac {3 A b \sqrt {c \,x^{4}+b \,x^{2}+a}}{8 a^{2} x^{2}}-\frac {3 \ln \left (\frac {2 a +b \,x^{2}+2 \sqrt {a}\, \sqrt {c \,x^{4}+b \,x^{2}+a}}{x^{2}}\right ) A \,b^{2}}{16 a^{\frac {5}{2}}}+\frac {\ln \left (\frac {2 a +b \,x^{2}+2 \sqrt {a}\, \sqrt {c \,x^{4}+b \,x^{2}+a}}{x^{2}}\right ) c A}{4 a^{\frac {3}{2}}}-\frac {B \sqrt {c \,x^{4}+b \,x^{2}+a}}{2 a \,x^{2}}+\frac {\ln \left (\frac {2 a +b \,x^{2}+2 \sqrt {a}\, \sqrt {c \,x^{4}+b \,x^{2}+a}}{x^{2}}\right ) b B}{4 a^{\frac {3}{2}}}\) | \(194\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Exception raised: ValueError} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.44, size = 255, normalized size = 2.06 \begin {gather*} \left [\frac {{\left (4 \, B a b - 3 \, A b^{2} + 4 \, A a c\right )} \sqrt {a} x^{4} \log \left (-\frac {{\left (b^{2} + 4 \, a c\right )} x^{4} + 8 \, a b x^{2} + 4 \, \sqrt {c x^{4} + b x^{2} + a} {\left (b x^{2} + 2 \, a\right )} \sqrt {a} + 8 \, a^{2}}{x^{4}}\right ) - 4 \, \sqrt {c x^{4} + b x^{2} + a} {\left (2 \, A a^{2} + {\left (4 \, B a^{2} - 3 \, A a b\right )} x^{2}\right )}}{32 \, a^{3} x^{4}}, -\frac {{\left (4 \, B a b - 3 \, A b^{2} + 4 \, A a c\right )} \sqrt {-a} x^{4} \arctan \left (\frac {\sqrt {c x^{4} + b x^{2} + a} {\left (b x^{2} + 2 \, a\right )} \sqrt {-a}}{2 \, {\left (a c x^{4} + a b x^{2} + a^{2}\right )}}\right ) + 2 \, \sqrt {c x^{4} + b x^{2} + a} {\left (2 \, A a^{2} + {\left (4 \, B a^{2} - 3 \, A a b\right )} x^{2}\right )}}{16 \, a^{3} x^{4}}\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 {A + B x^{2}}{x^{5} \sqrt {a + b x^{2} + c x^{4}}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 339 vs.
\(2 (106) = 212\).
time = 3.51, size = 339, normalized size = 2.73 \begin {gather*} -\frac {{\left (4 \, B a b - 3 \, A b^{2} + 4 \, A a c\right )} \arctan \left (-\frac {\sqrt {c} x^{2} - \sqrt {c x^{4} + b x^{2} + a}}{\sqrt {-a}}\right )}{8 \, \sqrt {-a} a^{2}} + \frac {4 \, {\left (\sqrt {c} x^{2} - \sqrt {c x^{4} + b x^{2} + a}\right )}^{3} B a b - 3 \, {\left (\sqrt {c} x^{2} - \sqrt {c x^{4} + b x^{2} + a}\right )}^{3} A b^{2} + 4 \, {\left (\sqrt {c} x^{2} - \sqrt {c x^{4} + b x^{2} + a}\right )}^{3} A a c + 8 \, {\left (\sqrt {c} x^{2} - \sqrt {c x^{4} + b x^{2} + a}\right )}^{2} B a^{2} \sqrt {c} - 4 \, {\left (\sqrt {c} x^{2} - \sqrt {c x^{4} + b x^{2} + a}\right )} B a^{2} b + 5 \, {\left (\sqrt {c} x^{2} - \sqrt {c x^{4} + b x^{2} + a}\right )} A a b^{2} + 4 \, {\left (\sqrt {c} x^{2} - \sqrt {c x^{4} + b x^{2} + a}\right )} A a^{2} c - 8 \, B a^{3} \sqrt {c} + 8 \, A a^{2} b \sqrt {c}}{8 \, {\left ({\left (\sqrt {c} x^{2} - \sqrt {c x^{4} + b x^{2} + a}\right )}^{2} - a\right )}^{2} a^{2}} \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 {B\,x^2+A}{x^5\,\sqrt {c\,x^4+b\,x^2+a}} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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