Optimal. Leaf size=79 \[ -\frac {a \sqrt {a^2+2 a b x^2+b^2 x^4}}{7 x^7 \left (a+b x^2\right )}-\frac {b \sqrt {a^2+2 a b x^2+b^2 x^4}}{5 x^5 \left (a+b x^2\right )} \]
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Rubi [A]
time = 0.02, antiderivative size = 79, normalized size of antiderivative = 1.00, number of steps
used = 3, number of rules used = 2, integrand size = 26, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {1126, 14}
\begin {gather*} -\frac {a \sqrt {a^2+2 a b x^2+b^2 x^4}}{7 x^7 \left (a+b x^2\right )}-\frac {b \sqrt {a^2+2 a b x^2+b^2 x^4}}{5 x^5 \left (a+b x^2\right )} \end {gather*}
Antiderivative was successfully verified.
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Rule 14
Rule 1126
Rubi steps
\begin {align*} \int \frac {\sqrt {a^2+2 a b x^2+b^2 x^4}}{x^8} \, dx &=\frac {\sqrt {a^2+2 a b x^2+b^2 x^4} \int \frac {a b+b^2 x^2}{x^8} \, dx}{a b+b^2 x^2}\\ &=\frac {\sqrt {a^2+2 a b x^2+b^2 x^4} \int \left (\frac {a b}{x^8}+\frac {b^2}{x^6}\right ) \, dx}{a b+b^2 x^2}\\ &=-\frac {a \sqrt {a^2+2 a b x^2+b^2 x^4}}{7 x^7 \left (a+b x^2\right )}-\frac {b \sqrt {a^2+2 a b x^2+b^2 x^4}}{5 x^5 \left (a+b x^2\right )}\\ \end {align*}
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Mathematica [A]
time = 0.01, size = 39, normalized size = 0.49 \begin {gather*} -\frac {\sqrt {\left (a+b x^2\right )^2} \left (5 a+7 b x^2\right )}{35 x^7 \left (a+b x^2\right )} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.02, size = 36, normalized size = 0.46
method | result | size |
risch | \(\frac {\left (-\frac {b \,x^{2}}{5}-\frac {a}{7}\right ) \sqrt {\left (b \,x^{2}+a \right )^{2}}}{x^{7} \left (b \,x^{2}+a \right )}\) | \(35\) |
gosper | \(-\frac {\left (7 b \,x^{2}+5 a \right ) \sqrt {\left (b \,x^{2}+a \right )^{2}}}{35 x^{7} \left (b \,x^{2}+a \right )}\) | \(36\) |
default | \(-\frac {\left (7 b \,x^{2}+5 a \right ) \sqrt {\left (b \,x^{2}+a \right )^{2}}}{35 x^{7} \left (b \,x^{2}+a \right )}\) | \(36\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.27, size = 15, normalized size = 0.19 \begin {gather*} -\frac {7 \, b x^{2} + 5 \, a}{35 \, x^{7}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.34, size = 15, normalized size = 0.19 \begin {gather*} -\frac {7 \, b x^{2} + 5 \, a}{35 \, x^{7}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.05, size = 15, normalized size = 0.19 \begin {gather*} \frac {- 5 a - 7 b x^{2}}{35 x^{7}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 4.21, size = 31, normalized size = 0.39 \begin {gather*} -\frac {7 \, b x^{2} \mathrm {sgn}\left (b x^{2} + a\right ) + 5 \, a \mathrm {sgn}\left (b x^{2} + a\right )}{35 \, x^{7}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 4.18, size = 35, normalized size = 0.44 \begin {gather*} -\frac {\left (7\,b\,x^2+5\,a\right )\,\sqrt {{\left (b\,x^2+a\right )}^2}}{35\,x^7\,\left (b\,x^2+a\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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