Optimal. Leaf size=43 \[ \frac {B \sqrt {a+b x^2}}{b}-\frac {A \tanh ^{-1}\left (\frac {\sqrt {a+b x^2}}{\sqrt {a}}\right )}{\sqrt {a}} \]
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Rubi [A]
time = 0.02, antiderivative size = 43, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 4, integrand size = 22, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.182, Rules used = {457, 81, 65,
214} \begin {gather*} \frac {B \sqrt {a+b x^2}}{b}-\frac {A \tanh ^{-1}\left (\frac {\sqrt {a+b x^2}}{\sqrt {a}}\right )}{\sqrt {a}} \end {gather*}
Antiderivative was successfully verified.
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Rule 65
Rule 81
Rule 214
Rule 457
Rubi steps
\begin {align*} \int \frac {A+B x^2}{x \sqrt {a+b x^2}} \, dx &=\frac {1}{2} \text {Subst}\left (\int \frac {A+B x}{x \sqrt {a+b x}} \, dx,x,x^2\right )\\ &=\frac {B \sqrt {a+b x^2}}{b}+\frac {1}{2} A \text {Subst}\left (\int \frac {1}{x \sqrt {a+b x}} \, dx,x,x^2\right )\\ &=\frac {B \sqrt {a+b x^2}}{b}+\frac {A \text {Subst}\left (\int \frac {1}{-\frac {a}{b}+\frac {x^2}{b}} \, dx,x,\sqrt {a+b x^2}\right )}{b}\\ &=\frac {B \sqrt {a+b x^2}}{b}-\frac {A \tanh ^{-1}\left (\frac {\sqrt {a+b x^2}}{\sqrt {a}}\right )}{\sqrt {a}}\\ \end {align*}
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Mathematica [A]
time = 0.04, size = 43, normalized size = 1.00 \begin {gather*} \frac {B \sqrt {a+b x^2}}{b}-\frac {A \tanh ^{-1}\left (\frac {\sqrt {a+b x^2}}{\sqrt {a}}\right )}{\sqrt {a}} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.08, size = 45, normalized size = 1.05
method | result | size |
default | \(\frac {B \sqrt {b \,x^{2}+a}}{b}-\frac {A \ln \left (\frac {2 a +2 \sqrt {a}\, \sqrt {b \,x^{2}+a}}{x}\right )}{\sqrt {a}}\) | \(45\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.33, size = 33, normalized size = 0.77 \begin {gather*} -\frac {A \operatorname {arsinh}\left (\frac {a}{\sqrt {a b} {\left | x \right |}}\right )}{\sqrt {a}} + \frac {\sqrt {b x^{2} + a} B}{b} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 2.90, size = 102, normalized size = 2.37 \begin {gather*} \left [\frac {A \sqrt {a} b \log \left (-\frac {b x^{2} - 2 \, \sqrt {b x^{2} + a} \sqrt {a} + 2 \, a}{x^{2}}\right ) + 2 \, \sqrt {b x^{2} + a} B a}{2 \, a b}, \frac {A \sqrt {-a} b \arctan \left (\frac {\sqrt {-a}}{\sqrt {b x^{2} + a}}\right ) + \sqrt {b x^{2} + a} B a}{a b}\right ] \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 4.74, size = 61, normalized size = 1.42 \begin {gather*} \frac {A \operatorname {atan}{\left (\frac {1}{\sqrt {- \frac {1}{a}} \sqrt {a + b x^{2}}} \right )}}{a \sqrt {- \frac {1}{a}}} - \frac {B \left (\begin {cases} - \frac {x^{2}}{\sqrt {a}} & \text {for}\: b = 0 \\- \frac {2 \sqrt {a + b x^{2}}}{b} & \text {otherwise} \end {cases}\right )}{2} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 1.27, size = 38, normalized size = 0.88 \begin {gather*} \frac {A \arctan \left (\frac {\sqrt {b x^{2} + a}}{\sqrt {-a}}\right )}{\sqrt {-a}} + \frac {\sqrt {b x^{2} + a} B}{b} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.52, size = 35, normalized size = 0.81 \begin {gather*} \frac {B\,\sqrt {b\,x^2+a}}{b}-\frac {A\,\mathrm {atanh}\left (\frac {\sqrt {b\,x^2+a}}{\sqrt {a}}\right )}{\sqrt {a}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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