Optimal. Leaf size=44 \[ -\frac {2 (a+b x)^{3/2}}{5 a x^{5/2}}+\frac {4 b (a+b x)^{3/2}}{15 a^2 x^{3/2}} \]
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Rubi [A]
time = 0.00, antiderivative size = 44, normalized size of antiderivative = 1.00, number of steps
used = 2, number of rules used = 2, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.133, Rules used = {47, 37}
\begin {gather*} \frac {4 b (a+b x)^{3/2}}{15 a^2 x^{3/2}}-\frac {2 (a+b x)^{3/2}}{5 a x^{5/2}} \end {gather*}
Antiderivative was successfully verified.
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Rule 37
Rule 47
Rubi steps
\begin {align*} \int \frac {\sqrt {a+b x}}{x^{7/2}} \, dx &=-\frac {2 (a+b x)^{3/2}}{5 a x^{5/2}}-\frac {(2 b) \int \frac {\sqrt {a+b x}}{x^{5/2}} \, dx}{5 a}\\ &=-\frac {2 (a+b x)^{3/2}}{5 a x^{5/2}}+\frac {4 b (a+b x)^{3/2}}{15 a^2 x^{3/2}}\\ \end {align*}
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Mathematica [A]
time = 0.07, size = 39, normalized size = 0.89 \begin {gather*} -\frac {2 \sqrt {a+b x} \left (3 a^2+a b x-2 b^2 x^2\right )}{15 a^2 x^{5/2}} \end {gather*}
Antiderivative was successfully verified.
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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(70\) vs.
\(2(32)=64\).
time = 0.10, size = 71, normalized size = 1.61
method | result | size |
gosper | \(-\frac {2 \left (b x +a \right )^{\frac {3}{2}} \left (-2 b x +3 a \right )}{15 x^{\frac {5}{2}} a^{2}}\) | \(24\) |
risch | \(-\frac {2 \sqrt {b x +a}\, \left (-2 x^{2} b^{2}+a b x +3 a^{2}\right )}{15 x^{\frac {5}{2}} a^{2}}\) | \(34\) |
default | \(-\frac {\sqrt {b x +a}}{2 x^{\frac {5}{2}}}-\frac {a \left (-\frac {2 \sqrt {b x +a}}{5 a \,x^{\frac {5}{2}}}-\frac {4 b \left (-\frac {2 \sqrt {b x +a}}{3 a \,x^{\frac {3}{2}}}+\frac {4 b \sqrt {b x +a}}{3 a^{2} \sqrt {x}}\right )}{5 a}\right )}{4}\) | \(71\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.29, size = 31, normalized size = 0.70 \begin {gather*} \frac {2 \, {\left (\frac {5 \, {\left (b x + a\right )}^{\frac {3}{2}} b}{x^{\frac {3}{2}}} - \frac {3 \, {\left (b x + a\right )}^{\frac {5}{2}}}{x^{\frac {5}{2}}}\right )}}{15 \, a^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.58, size = 34, normalized size = 0.77 \begin {gather*} \frac {2 \, {\left (2 \, b^{2} x^{2} - a b x - 3 \, a^{2}\right )} \sqrt {b x + a}}{15 \, a^{2} x^{\frac {5}{2}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 2.89, size = 65, normalized size = 1.48 \begin {gather*} - \frac {2 \sqrt {b} \sqrt {\frac {a}{b x} + 1}}{5 x^{2}} - \frac {2 b^{\frac {3}{2}} \sqrt {\frac {a}{b x} + 1}}{15 a x} + \frac {4 b^{\frac {5}{2}} \sqrt {\frac {a}{b x} + 1}}{15 a^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.75, size = 50, normalized size = 1.14 \begin {gather*} \frac {2 \, {\left (\frac {2 \, {\left (b x + a\right )} b^{5}}{a^{2}} - \frac {5 \, b^{5}}{a}\right )} {\left (b x + a\right )}^{\frac {3}{2}} b}{15 \, {\left ({\left (b x + a\right )} b - a b\right )}^{\frac {5}{2}} {\left | b \right |}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.25, size = 32, normalized size = 0.73 \begin {gather*} -\frac {\sqrt {a+b\,x}\,\left (\frac {2\,b\,x}{15\,a}-\frac {4\,b^2\,x^2}{15\,a^2}+\frac {2}{5}\right )}{x^{5/2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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