Optimal. Leaf size=19 \[ \frac {2 \sinh ^{-1}\left (\frac {\sqrt {b x}}{\sqrt {2}}\right )}{b} \]
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Rubi [A]
time = 0.00, antiderivative size = 19, normalized size of antiderivative = 1.00, number of steps
used = 2, number of rules used = 2, integrand size = 17, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.118, Rules used = {65, 221}
\begin {gather*} \frac {2 \sinh ^{-1}\left (\frac {\sqrt {b x}}{\sqrt {2}}\right )}{b} \end {gather*}
Antiderivative was successfully verified.
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Rule 65
Rule 221
Rubi steps
\begin {align*} \int \frac {1}{\sqrt {b x} \sqrt {2+b x}} \, dx &=\frac {2 \text {Subst}\left (\int \frac {1}{\sqrt {2+x^2}} \, dx,x,\sqrt {b x}\right )}{b}\\ &=\frac {2 \sinh ^{-1}\left (\frac {\sqrt {b x}}{\sqrt {2}}\right )}{b}\\ \end {align*}
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Mathematica [B] Leaf count is larger than twice the leaf count of optimal. \(42\) vs. \(2(19)=38\).
time = 0.00, size = 42, normalized size = 2.21 \begin {gather*} -\frac {2 \sqrt {x} \log \left (-\sqrt {b} \sqrt {x}+\sqrt {2+b x}\right )}{\sqrt {b} \sqrt {b x}} \end {gather*}
Antiderivative was successfully verified.
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Mathics [A]
time = 2.34, size = 17, normalized size = 0.89 \begin {gather*} \frac {2 \text {ArcSinh}\left [\frac {\sqrt {2} \sqrt {b} \sqrt {x}}{2}\right ]}{b} \end {gather*}
Warning: Unable to verify antiderivative.
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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(57\) vs.
\(2(16)=32\).
time = 0.14, size = 58, normalized size = 3.05
method | result | size |
meijerg | \(\frac {2 \sqrt {x}\, \arcsinh \left (\frac {\sqrt {b}\, \sqrt {x}\, \sqrt {2}}{2}\right )}{\sqrt {b}\, \sqrt {b x}}\) | \(26\) |
default | \(\frac {\sqrt {b x \left (b x +2\right )}\, \ln \left (\frac {b^{2} x +b}{\sqrt {b^{2}}}+\sqrt {x^{2} b^{2}+2 b x}\right )}{\sqrt {b x}\, \sqrt {b x +2}\, \sqrt {b^{2}}}\) | \(58\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.26, size = 32, normalized size = 1.68 \begin {gather*} \frac {\log \left (2 \, b^{2} x + 2 \, \sqrt {b^{2} x^{2} + 2 \, b x} b + 2 \, b\right )}{b} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.29, size = 25, normalized size = 1.32 \begin {gather*} -\frac {\log \left (-b x + \sqrt {b x + 2} \sqrt {b x} - 1\right )}{b} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.69, size = 20, normalized size = 1.05 \begin {gather*} \frac {2 \operatorname {asinh}{\left (\frac {\sqrt {2} \sqrt {b} \sqrt {x}}{2} \right )}}{b} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.00, size = 24, normalized size = 1.26 \begin {gather*} -\frac {2 \ln \left (\sqrt {b x+2}-\sqrt {b x}\right )}{b} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.28, size = 37, normalized size = 1.95 \begin {gather*} \frac {4\,\mathrm {atan}\left (\frac {b\,\left (\sqrt {2}-\sqrt {b\,x+2}\right )}{\sqrt {b\,x}\,\sqrt {-b^2}}\right )}{\sqrt {-b^2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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